Dictionary De - En
De - Es
De - Pt| English Dictionary: Ajuga pyramidalis | by the DICT Development Group |
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| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Sponge \Sponge\, n. [OF. esponge, F. [82]ponge, L. spongia, Gr. [?], [?]. Cf. {Fungus}, {Spunk}.] [Formerly written also {spunge}.] 1. (Zo[94]l.) Any one of numerous species of Spongi[91], or Porifera. See Illust. and Note under {Spongi[91]}. 2. The elastic fibrous skeleton of many species of horny Spongi[91] (keratosa), used for many purposes, especially the varieties of the genus {Spongia}. The most valuable sponges are found in the Mediterranean and the Red Sea, and on the coasts of Florida and the West Indies. 3. Fig.: One who lives upon others; a pertinaceous and indolent dependent; a parasite; a sponger. 4. Any spongelike substance. Specifically: (a) Dough before it is kneaded and formed into loaves, and after it is converted into a light, spongy mass by the agency of the yeast or leaven. (b) Iron from the puddling furnace, in a pasty condition. (c) Iron ore, in masses, reduced but not melted or worked. 5. (Gun.) A mop for cleaning the bore of a cannon after a discharge. It consists of a cylinder of wood, covered with sheepskin with the wool on, or cloth with a heavy looped nap, and having a handle, or staff. 6. (Far.) The extremity, or point, of a horseshoe, answering to the heel. {Bath sponge}, any one of several varieties of coarse commercial sponges, especially {Spongia equina}. {Cup sponge}, a toilet sponge growing in a cup-shaped form. {Glass sponge}. See {Glass-sponge}, in the Vocabulary. {Glove sponge}, a variety of commercial sponge ({Spongia officinalis}, variety {tubulufera}), having very fine fibers, native of Florida, and the West Indies. {Grass sponge}, any one of several varieties of coarse commercial sponges having the surface irregularly tufted, as {Spongia graminea}, and {S. equina}, variety {cerebriformis}, of Florida and the West Indies. {Horse sponge}, a coarse commercial sponge, especially {Spongia equina}. {Platinum sponge}. (Chem.) See under {Platinum}. {Pyrotechnical sponge}, a substance made of mushrooms or fungi, which are boiled in water, dried, and beaten, then put in a strong lye prepared with saltpeter, and again dried in an oven. This makes the black match, or tinder, brought from Germany. {Sheep's-wool sponge}, a fine and durable commercial sponge ({Spongia equina}, variety {gossypina}) found in Florida and the West Indies. The surface is covered with larger and smaller tufts, having the oscula between them. {Sponge cake}, a kind of sweet cake which is light and spongy. {Sponge lead}, [or] {Spongy lead} (Chem.), metallic lead brought to a spongy form by reduction of lead salts, or by compressing finely divided lead; -- used in secondary batteries and otherwise. {Sponge tree} (Bot.), a tropical leguminous tree ({Acacia Farnesiana}), with deliciously fragrant flowers, which are used in perfumery. {Toilet sponge}, a very fine and superior variety of Mediterranean sponge ({Spongia officinalis}, variety {Mediterranea}); -- called also {turkish sponge}. {To set a sponge} (Cookery), to leaven a small mass of flour, to be used in leavening a larger quantity. {To throw up the sponge}, to give up a contest; to acknowledge defeat; -- from a custom of the prize ring, the person employed to sponge a pugilist between rounds throwing his sponge in the air in token of defeat. [Cant or Slang] [bd]He was too brave a man to throw up the sponge to fate.[b8] --Lowell. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Egyptian \E*gyp"tian\, a. [L. Aegyptius, Gr. [?], fr. [?] (L. Aegyptus) Egypt: cf. F. [82]gyptien. Cf. {Gypsy}.] Pertaining to Egypt, in Africa. {Egyptian bean}. (Bot.) (a) The beanlike fruit of an aquatic plant ({Nelumbium speciosum}), somewhat resembling the water lily. (b) See under {Bean}, 1. {Egyptian cross}. See Illust. (No. 6) of {Cross}. {Egyptian thorn} (Bot.), a medium-sized tree ({Acacia vera}). It is one of the chief sources of the best gum arabic. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Gum \Gum\, n. [OE. gomme, gumme, F. gomme, L. gummi and commis, fr. Gr. [?], prob. from an Egyptian form kam[?]; cf. It. {gomma}.] 1. A vegetable secretion of many trees or plants that hardens when it exudes, but is soluble in water; as, gum arabic; gum tragacanth; the gum of the cherry tree. Also, with less propriety, exudations that are not soluble in water; as, gum copal and gum sandarac, which are really resins. 2. (Bot.) See {Gum tree}, {below}. 3. A hive made of a section of a hollow gum tree; hence, any roughly made hive; also, a vessel or bin made of a hollow log. [Southern U. S.] 4. A rubber overshoe. [Local, U. S.] {Black gum}, {Blue gum}, {British gum}, etc. See under {Black}, {Blue}, etc. {Gum Acaroidea}, the resinous gum of the Australian grass tree ({Xanlhorrh[d2]a}). {Gum animal} (Zo[94]l.), the galago of West Africa; -- so called because it feeds on gums. See {Galago}. {Gum animi or anim[82]}. See {Anim[82]}. {Gum arabic}, a gum yielded mostly by several species of {Acacia} (chiefly {A. vera} and {A. Arabica}) growing in Africa and Southern Asia; -- called also {gum acacia}. East Indian gum arabic comes from a tree of the Orange family which bears the elephant apple. {Gum butea}, a gum yielded by the Indian plants {Butea frondosa} and {B. superba}, and used locally in tanning and in precipitating indigo. {Gum cistus}, a plant of the genus {Cistus} ({Cistus ladaniferus}), a species of rock rose. {Gum dragon}. See {Tragacanth}. {Gum elastic}, {Elastic gum}. See {Caoutchouc}. {Gum elemi}. See {Elemi}. {Gum juniper}. See {Sandarac}. {Gum kino}. See under {Kino}. {Gum lac}. See {Lac}. {Gum Ladanum}, a fragrant gum yielded by several Oriental species of Cistus or rock rose. {Gum passages}, sap receptacles extending through the parenchyma of certain plants ({Amygdalace[91]}, {Cactace[91]}, etc.), and affording passage for gum. {Gum pot}, a varnish maker's utensil for melting gum and mixing other ingredients. {Gum resin}, the milky juice of a plant solidified by exposure to air; one of certain inspissated saps, mixtures of, or having properties of, gum and resin; a resin containing more or less mucilaginous and gummy matter. {Gum sandarac}. See {Sandarac}. {Gum Senegal}, a gum similar to gum arabic, yielded by trees ({Acacia Verek} and {A. Adansoni[84]}) growing in the Senegal country, West Africa. {Gum tragacanth}. See {Tragacanth}. {Gum tree}, the name given to several trees in America and Australia: (a) The black gum ({Nyssa multiflora}), one of the largest trees of the Southern States, bearing a small blue fruit, the favorite food of the opossum. Most of the large trees become hollow. (b) A tree of the genus {Eucalyptus.} See {Eucalpytus.} (c) The sweet gum tree of the United States ({Liquidambar styraciflua}), a large and beautiful tree with pointedly lobed leaves and woody burlike fruit. It exudes an aromatic terebinthine juice. {Gum water}, a solution of gum, esp. of gum arabic, in water. {Gum wood}, the wood of any gum tree, esp. the wood of the {Eucalyptus piperita}, of New South Wales. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Accessibility \Ac*cess`i*bil"i*ty\, n. [L. accessibilitas: cf. F. accessibilit[82].] The quality of being accessible, or of admitting approach; receptibility. --Langhorne. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Accessible \Ac*cess"i*ble\, a. [L. accessibilis, fr. accedere: cf. F. accessible. See {Accede}.] 1. Easy of access or approach; approachable; as, an accessible town or mountain, an accessible person. 2. Open to the influence of; -- with to. [bd]Minds accessible to reason.[b8] --Macaulay. 3. Obtainable; to be got at. The best information . . . at present accessible. --Macaulay. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Accessibly \Ac*cess"i*bly\, adv. In an accessible manner. | |
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Accessive \Ac*ces"sive\, a. Additional. | |
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Accusable \Ac*cus"a*ble\, a. [L. accusabilis: cf. F. accusable.] Liable to be accused or censured; chargeable with a crime or fault; blamable; -- with of. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Acockbill \A*cock"bill`\, adv. [Prefix a- + cock + bill: with bills cocked up.] (Naut.) (a) Hanging at the cathead, ready to let go, as an anchor. (b) Topped up; having one yardarm higher than the other. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Agasp \A*gasp"\, adv. & a. [. a- + gasp.] In a state of gasping. --Coleridge. | |
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Ague \A"gue\, n. [OE. agu, ague, OF. agu, F. aigu, sharp, OF. fem. ague, LL. (febris) acuta, a sharp, acute fever, fr. L. acutus sharp. See {Acute}.] 1. An acute fever. [Obs.] [bd]Brenning agues.[b8] --P. Plowman. 2. (Med.) An intermittent fever, attended by alternate cold and hot fits. 3. The cold fit or rigor of the intermittent fever; as, fever and ague. 4. A chill, or state of shaking, as with cold. --Dryden. {Ague cake}, an enlargement of the spleen produced by ague. {Ague drop}, a solution of the arsenite of potassa used for ague. {Ague fit}, a fit of the ague. --Shak. {Ague spell}, a spell or charm against ague. --Gay. {Ague tree}, the sassafras, -- sometimes so called from the use of its root formerly, in cases of ague. [Obs.] | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Ascospore \As"co*spore\, n. [Ascus + spore.] (Bot.) One of the spores contained in the asci of lichens and fungi. [See Illust. of {Ascus}.] | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Ass \Ass\, n. [OE. asse, AS. assa; akin to Icel. asni, W. asen, asyn, L. asinus, dim. aselus, Gr. [?]; also to AS. esol, OHG. esil, G. esel, Goth. asilus, Dan. [91]sel, Lith. asilas, Bohem. osel, Pol. osiel. The word is prob. of Semitic origin; cf. Heb. ath[?]n she ass. Cf. {Ease}.] 1. (Zo[94]l.) A quadruped of the genus {Equus} ({E. asinus}), smaller than the horse, and having a peculiarly harsh bray and long ears. The tame or domestic ass is patient, slow, and sure-footed, and has become the type of obstinacy and stupidity. There are several species of wild asses which are swift-footed. 2. A dull, heavy, stupid fellow; a dolt. --Shak. {Asses' Bridge}. [L. pons asinorum.] The fifth proposition of the first book of Euclid, [bd]The angles at the base of an isosceles triangle are equal to one another.[b8] [Sportive] [bd]A schoolboy, stammering out his Asses' Bridge.[b8] --F. Harrison. {To make an ass of one's self}, to do or say something very foolish or absurd. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Bridge \Bridge\, n. [OE. brig, brigge, brug, brugge, AS. brycg, bricg; akin to Fries. bregge, D. brug, OHG. brucca, G. br[81]cke, Icel. bryggja pier, bridge, Sw. brygga, Dan. brygge, and prob. Icel. br[umac] bridge, Sw. & Dan. bro bridge, pavement, and possibly to E. brow.] 1. A structure, usually of wood, stone, brick, or iron, erected over a river or other water course, or over a chasm, railroad, etc., to make a passageway from one bank to the other. 2. Anything supported at the ends, which serves to keep some other thing from resting upon the object spanned, as in engraving, watchmaking, etc., or which forms a platform or staging over which something passes or is conveyed. 3. (Mus.) The small arch or bar at right angles to the strings of a violin, guitar, etc., serving of raise them and transmit their vibrations to the body of the instrument. 4. (Elec.) A device to measure the resistance of a wire or other conductor forming part of an electric circuit. 5. A low wall or vertical partition in the fire chamber of a furnace, for deflecting flame, etc.; -- usually called a {bridge wall}. {Aqueduct bridge}. See {Aqueduct}. {Asses' bridge}, {Bascule bridge}, {Bateau bridge}. See under {Ass}, {Bascule}, {Bateau}. {Bridge of a steamer} (Naut.), a narrow platform across the deck, above the rail, for the convenience of the officer in charge of the ship; in paddlewheel vessels it connects the paddle boxes. {Bridge of the nose}, the upper, bony part of the nose. {Cantalever bridge}. See under {Cantalever}. {Draw bridge}. See {Drawbridge}. {Flying bridge}, a temporary bridge suspended or floating, as for the passage of armies; also, a floating structure connected by a cable with an anchor or pier up stream, and made to pass from bank to bank by the action of the current or other means. {Girder bridge} or {Truss bridge}, a bridge formed by girders, or by trusses resting upon abutments or piers. {Lattice bridge}, a bridge formed by lattice girders. {Pontoon bridge}, {Ponton bridge}. See under {Pontoon}. {Skew bridge}, a bridge built obliquely from bank to bank, as sometimes required in railway engineering. {Suspension bridge}. See under {Suspension}. {Trestle bridge}, a bridge formed of a series of short, simple girders resting on trestles. {Tubular bridge}, a bridge in the form of a hollow trunk or rectangular tube, with cellular walls made of iron plates riveted together, as the Britannia bridge over the Menai Strait, and the Victoria bridge at Montreal. {Wheatstone's bridge} (Elec.), a device for the measurement of resistances, so called because the balance between the resistances to be measured is indicated by the absence of a current in a certain wire forming a bridge or connection between two points of the apparatus; -- invented by Sir Charles Wheatstone. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Ass \Ass\, n. [OE. asse, AS. assa; akin to Icel. asni, W. asen, asyn, L. asinus, dim. aselus, Gr. [?]; also to AS. esol, OHG. esil, G. esel, Goth. asilus, Dan. [91]sel, Lith. asilas, Bohem. osel, Pol. osiel. The word is prob. of Semitic origin; cf. Heb. ath[?]n she ass. Cf. {Ease}.] 1. (Zo[94]l.) A quadruped of the genus {Equus} ({E. asinus}), smaller than the horse, and having a peculiarly harsh bray and long ears. The tame or domestic ass is patient, slow, and sure-footed, and has become the type of obstinacy and stupidity. There are several species of wild asses which are swift-footed. 2. A dull, heavy, stupid fellow; a dolt. --Shak. {Asses' Bridge}. [L. pons asinorum.] The fifth proposition of the first book of Euclid, [bd]The angles at the base of an isosceles triangle are equal to one another.[b8] [Sportive] [bd]A schoolboy, stammering out his Asses' Bridge.[b8] --F. Harrison. {To make an ass of one's self}, to do or say something very foolish or absurd. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Bridge \Bridge\, n. [OE. brig, brigge, brug, brugge, AS. brycg, bricg; akin to Fries. bregge, D. brug, OHG. brucca, G. br[81]cke, Icel. bryggja pier, bridge, Sw. brygga, Dan. brygge, and prob. Icel. br[umac] bridge, Sw. & Dan. bro bridge, pavement, and possibly to E. brow.] 1. A structure, usually of wood, stone, brick, or iron, erected over a river or other water course, or over a chasm, railroad, etc., to make a passageway from one bank to the other. 2. Anything supported at the ends, which serves to keep some other thing from resting upon the object spanned, as in engraving, watchmaking, etc., or which forms a platform or staging over which something passes or is conveyed. 3. (Mus.) The small arch or bar at right angles to the strings of a violin, guitar, etc., serving of raise them and transmit their vibrations to the body of the instrument. 4. (Elec.) A device to measure the resistance of a wire or other conductor forming part of an electric circuit. 5. A low wall or vertical partition in the fire chamber of a furnace, for deflecting flame, etc.; -- usually called a {bridge wall}. {Aqueduct bridge}. See {Aqueduct}. {Asses' bridge}, {Bascule bridge}, {Bateau bridge}. See under {Ass}, {Bascule}, {Bateau}. {Bridge of a steamer} (Naut.), a narrow platform across the deck, above the rail, for the convenience of the officer in charge of the ship; in paddlewheel vessels it connects the paddle boxes. {Bridge of the nose}, the upper, bony part of the nose. {Cantalever bridge}. See under {Cantalever}. {Draw bridge}. See {Drawbridge}. {Flying bridge}, a temporary bridge suspended or floating, as for the passage of armies; also, a floating structure connected by a cable with an anchor or pier up stream, and made to pass from bank to bank by the action of the current or other means. {Girder bridge} or {Truss bridge}, a bridge formed by girders, or by trusses resting upon abutments or piers. {Lattice bridge}, a bridge formed by lattice girders. {Pontoon bridge}, {Ponton bridge}. See under {Pontoon}. {Skew bridge}, a bridge built obliquely from bank to bank, as sometimes required in railway engineering. {Suspension bridge}. See under {Suspension}. {Trestle bridge}, a bridge formed of a series of short, simple girders resting on trestles. {Tubular bridge}, a bridge in the form of a hollow trunk or rectangular tube, with cellular walls made of iron plates riveted together, as the Britannia bridge over the Menai Strait, and the Victoria bridge at Montreal. {Wheatstone's bridge} (Elec.), a device for the measurement of resistances, so called because the balance between the resistances to be measured is indicated by the absence of a current in a certain wire forming a bridge or connection between two points of the apparatus; -- invented by Sir Charles Wheatstone. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Assessable \As*sess"a*ble\, a. Liable to be assessed or taxed; as, assessable property. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Associability \As*so`cia*bil"i*ty\, n. The quality of being associable, or capable of association; associableness. [bd]The associability of feelings.[b8] --H. Spencer. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Associable \As*so"cia*ble\, a. [See {Associate}.] 1. Capable of being associated or joined. We know feelings to be associable only by the proved ability of one to revive another. --H. Spencer. 2. Sociable; companionable. [Obs.] 3. (Med.) Liable to be affected by sympathy with other parts; -- said of organs, nerves, muscles, etc. The stomach, the most associable of all the organs of the animal body. --Med. Rep. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Associableness \As*so"cia*ble*ness\, n. Associability. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Assuasive \As*sua"sive\, a. [From assuage, as if this were fr. a supposed L. assuadere to persuade to; or from E. pref. ad + -suasive as in persuasive.] Mitigating; tranquilizing; soothing. [R.] Music her soft assuasive voice applies. --Pope. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Curve \Curve\, n. [See {Curve}, a., {Cirb}.] 1. A bending without angles; that which is bent; a flexure; as, a curve in a railway or canal. 2. (Geom.) A line described according to some low, and having no finite portion of it a straight line. {Axis of a curve}. See under {Axis}. {Curve of quickest descent}. See {Brachystochrone}. {Curve tracing} (Math.), the process of determining the shape, location, singular points, and other peculiarities of a curve from its equation. {Plane curve} (Geom.), a curve such that when a plane passes through three points of the curve, it passes through all the other points of the curve. Any other curve is called a {curve of double curvature}, or a {twisted curve}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
{Altitude of a pyramid} (Geom.), the perpendicular distance from the vertex to the plane of the base. {Axis of a pyramid} (Geom.), a straight line drawn from the vertex to the center of the base. {Earth pyramid}. (Geol.) See {Earth pillars}, under {Earth}. {Right pyramid} (Geom.) a pyramid whose axis is perpendicular to the base. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Oscillation \Os`cil*la"tion\, n. [L. oscillatio a swinging.] 1. The act of oscillating; a swinging or moving backward and forward, like a pendulum; vibration. 2. Fluctuation; variation; change back and forth. His mind oscillated, undoubtedly; but the extreme points of the oscillation were not very remote. --Macaulay. {Axis of oscillation}, {Center of oscillation}. See under {Axis}, and {Center}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Symmetry \Sym"me*try\, n. [L. symmetria, Gr. [?]; sy`n with, together + [?] a measure: cf. F. sym[82]trie. See {Syn-}, and {Meter} rhythm.] 1. A due proportion of the several parts of a body to each other; adaptation of the form or dimensions of the several parts of a thing to each other; the union and conformity of the members of a work to the whole. 2. (Biol.) The law of likeness; similarity of structure; regularity in form and arrangement; orderly and similar distribution of parts, such that an animal may be divided into parts which are structurally symmetrical. Note: Bilateral symmetry, or two-sidedness, in vertebrates, etc., is that in which the body can be divided into symmetrical halves by a vertical plane passing through the middle; radial symmetry, as in echinoderms, is that in which the individual parts are arranged symmetrically around a central axis; serial symmetry, or zonal symmetry, as in earthworms, is that in which the segments or metameres of the body are disposed in a zonal manner one after the other in a longitudinal axis. This last is sometimes called metamerism. 3. (Bot.) (a) Equality in the number of parts of the successive circles in a flower. (b) Likeness in the form and size of floral organs of the same kind; regularity. {Axis of symmetry}. (Geom.) See under {Axis}. {Respective symmetry}, that disposition of parts in which only the opposite sides are equal to each other. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Axis \Ax"is\, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged. 2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i. e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center. 3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body. --Gray. 4. (Anat.) (a) The second vertebra of the neck, or {vertebra dentata}. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon. 5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded. 6. (Fine Arts) The primary or secondary central line of any design. {Anticlinal axis} (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. {Synclinal axis}, a line from which the strata slope upward in opposite directions, so as to form a valley. {Axis cylinder} (Anat.), the neuraxis or essential, central substance of a nerve fiber; -- called also {axis band}, {axial fiber}, and {cylinder axis}. {Axis in peritrochio}, the wheel and axle, one of the mechanical powers. {Axis of a curve} (Geom.), a straight line which bisects a system of parallel chords of a curve; called a {principal axis}, when cutting them at right angles, in which case it divides the curve into two symmetrical portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the {major axis} and the {minor axis}, and the two axes of the hyperbola are the {transverse axis} and the {conjugate axis}. {Axis of a lens}, the straight line passing through its center and perpendicular to its surfaces. {Axis of a} {telescope [or] microscope}, the straight line with which coincide the axes of the several lenses which compose it. {Axes of co[94]rdinates in a plane}, two straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. {Axes of co[94]rdinates in space}, the three straight lines in which the co[94]rdinate planes intersect each other. {Axis of a balance}, that line about which it turns. {Axis of oscillation}, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. {Axis of polarization}, the central line around which the prismatic rings or curves are arranged. --Brewster. {Axis of revolution} (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. {Axis of symmetry} (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. {Axis of the} {equator, ecliptic, horizon} (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. --Hutton. {Axis of the Ionic capital} (Arch.), a line passing perpendicularly through the middle of the eye of the volute. {Neutral axis} (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. {Optic axis of a crystal}, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. {Optic axis}, {Visual axis} (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. {Radical axis of two circles} (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. {Spiral axis} (Arch.), the axis of a twisted column drawn spirally in order to trace the circumvolutions without. {Axis of abscissas} and {Axis of ordinates}. See {Abscissa}. | |
| From U.S. Gazetteer (1990) [gazetteer]: | |
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Ages Brookside, KY Zip code(s): 40801 | |
| From U.S. Gazetteer (1990) [gazetteer]: | |
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Aguas Buenas zona, PR (urbana, FIPS 874) Location: 18.25941 N, 66.10543 W Population (1990): 4452 (1479 housing units) Area: 2.2 sq km (land), 0.0 sq km (water) | |
| From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
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access permission {permission} | |
| From Easton's 1897 Bible Dictionary [easton]: | |
|
Achshaph fascination, a royal city of the Canaanites, in the north of Palestine (Josh. 11:1; 12:20; 19:25). It was in the eastern boundary of the tribe of Asher, and is identified with the modern ruined village of Kesaf or Yasif, N.E. of Accho. | |
| From Easton's 1897 Bible Dictionary [easton]: | |
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Achzib falsehood. (1.) A town in the Shephelah, or plain country of Judah (Josh. 15:44); probably the same as Chezib of Gen. 38:5 = Ain Kezbeh. (2.) A Phoenician city (the Gr. Ecdippa), always retained in their possession though assigned to the tribe of Asher (Josh. 19:29; Judg. 1:31). It is identified with the modern es-Zib, on the Mediterranean, about 8 miles north of Accho. | |
| From Hitchcock's Bible Names Dictionary (late 1800's) [hitchcock]: | |
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Achshaph, poison; tricks | |
| From Hitchcock's Bible Names Dictionary (late 1800's) [hitchcock]: | |
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Achzib, liar; lying; one that runs | |
