English Dictionary: Ophiotoxin | by the DICT Development Group |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From WordNet (r) 3.0 (2006) [wn]: | |
| |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
O94phytic \O`[94]*phyt"ic\, a. (Bot.) Of or pertaining to an o[94]phyte. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obduce \Ob*duce"\, v. t. [L. obducere, obductum; ob (see Ob-) + ducere to lead.] To draw over, as a covering. [Obs.] --Sir M. Hale. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obduct \Ob*duct"\, v. t. [See {Obduce}.] To draw over; to cover. [Obs.] --Sir T. Browne. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obduction \Ob*duc"tion\, n. [L. obductio.] The act of drawing or laying over, as a covering. [Obs.] | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtected \Ob*tect"ed\, a. [L. obtectus, p. p. of obtegere to cover over.] 1. Covered; protected. [Obs.] 2. (Zo[94]l.) Covered with a hard chitinous case, as the pupa of certain files. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Pupa \Pu"pa\, n.; pl. L. {Pup[?]}, E. {Pupas}. [L. pupa girl. doll, puppet, fem. of pupus. Cf. {Puppet}.] 1. (Zo[94]l.) Any insect in that stage of its metamorphosis which usually immediately precedes the adult, or imago, stage. Note: Among insects belonging to the higher orders, as the Hymenoptera, Diptera, Lepidoptera, the pupa is inactive and takes no food; in the lower orders it is active and takes food, and differs little from the imago except in the rudimentary state of the sexual organs, and of the wings in those that have wings when adult. The term pupa is sometimes applied to other invertebrates in analogous stages of development. 2. (Zo[94]l.) A genus of air-breathing land snails having an elongated spiral shell. {Coarctate}, [or] {Obtected}, {pupa}, a pupa which is incased in the dried-up skin of the larva, as in many Diptera. {Masked pupa}, a pupa whose limbs are bound down and partly concealed by a chitinous covering, as in Lepidoptera. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtest \Ob*test"\, v. t. [imp. & p. p. {Obtested}; p. pr. & vb. n. {Obtesting}.] [L. obtestari; ob (see {Ob-}) + testari to witness, fr. testis a witness.] 1. To call to witness; to invoke as a witness. [R.] --Dryden. 2. To beseech; to supplicate; to beg for. [R.] | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtest \Ob*test"\, v. i. To protest. [R.] --E. Waterhouse. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtestation \Ob`tes*ta"tion\, n. [L. obtestatio.] The act of obtesting; supplication; protestation. [R.] Antonio asserted this with great obtestation. --Evelyn. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtest \Ob*test"\, v. t. [imp. & p. p. {Obtested}; p. pr. & vb. n. {Obtesting}.] [L. obtestari; ob (see {Ob-}) + testari to witness, fr. testis a witness.] 1. To call to witness; to invoke as a witness. [R.] --Dryden. 2. To beseech; to supplicate; to beg for. [R.] | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtest \Ob*test"\, v. t. [imp. & p. p. {Obtested}; p. pr. & vb. n. {Obtesting}.] [L. obtestari; ob (see {Ob-}) + testari to witness, fr. testis a witness.] 1. To call to witness; to invoke as a witness. [R.] --Dryden. 2. To beseech; to supplicate; to beg for. [R.] | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtusangular \Ob*tus"an`gu*lar\, a. See {Obstuseangular}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtuse \Ob*tuse"\ a. [Compar. {Obtuser}; superl. {Obtusest}.] [L. obtusus, p. p. of obtundere to blunt: cf. F. obtus. See {Obtund}.] 1. Not pointed or acute; blunt; -- applied esp. to angles greater than a right angle, or containing more than ninety degrees. 2. Not having acute sensibility or perceptions; dull; stupid; as, obtuse senses. --Milton. 3. Dull; deadened; as, obtuse sound. --Johnson. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Angle \An"gle\ ([acr][nsm]"g'l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. 'agky`los bent, crooked, angular, 'a`gkos a bend or hollow, AS. angel hook, fish-hook, G. angel, and F. anchor.] 1. The inclosed space near the point where two lines meet; a corner; a nook. Into the utmost angle of the world. --Spenser. To search the tenderest angles of the heart. --Milton. 2. (Geom.) (a) The figure made by. two lines which meet. (b) The difference of direction of two lines. In the lines meet, the point of meeting is the vertex of the angle. 3. A projecting or sharp corner; an angular fragment. Though but an angle reached him of the stone. --Dryden. 4. (Astrol.) A name given to four of the twelve astrological [bd]houses.[b8] [Obs.] --Chaucer. 5. [AS. angel.] A fishhook; tackle for catching fish, consisting of a line, hook, and bait, with or without a rod. Give me mine angle: we 'll to the river there. --Shak. A fisher next his trembling angle bears. --Pope. {Acute angle}, one less than a right angle, or less than 90[deg]. {Adjacent} or {Contiguous angles}, such as have one leg common to both angles. {Alternate angles}. See {Alternate}. {Angle bar}. (a) (Carp.) An upright bar at the angle where two faces of a polygonal or bay window meet. --Knight. (b) (Mach.) Same as {Angle iron}. {Angle bead} (Arch.), a bead worked on or fixed to the angle of any architectural work, esp. for protecting an angle of a wall. {Angle brace}, {Angle tie} (Carp.), a brace across an interior angle of a wooden frame, forming the hypothenuse and securing the two side pieces together. --Knight. {Angle iron} (Mach.), a rolled bar or plate of iron having one or more angles, used for forming the corners, or connecting or sustaining the sides of an iron structure to which it is riveted. {Angle leaf} (Arch.), a detail in the form of a leaf, more or less conventionalized, used to decorate and sometimes to strengthen an angle. {Angle meter}, an instrument for measuring angles, esp. for ascertaining the dip of strata. {Angle shaft} (Arch.), an enriched angle bead, often having a capital or base, or both. {Curvilineal angle}, one formed by two curved lines. {External angles}, angles formed by the sides of any right-lined figure, when the sides are produced or lengthened. {Facial angle}. See under {Facial}. {Internal angles}, those which are within any right-lined figure. {Mixtilineal angle}, one formed by a right line with a curved line. {Oblique angle}, one acute or obtuse, in opposition to a right angle. {Obtuse angle}, one greater than a right angle, or more than 90[deg]. {Optic angle}. See under {Optic}. {Rectilineal} or {Right-lined angle}, one formed by two right lines. {Right angle}, one formed by a right line falling on another perpendicularly, or an angle of 90[deg] (measured by a quarter circle). {Solid angle}, the figure formed by the meeting of three or more plane angles at one point. {Spherical angle}, one made by the meeting of two arcs of great circles, which mutually cut one another on the surface of a globe or sphere. {Visual angle}, the angle formed by two rays of light, or two straight lines drawn from the extreme points of an object to the center of the eye. {For Angles of commutation}, {draught}, {incidence}, {reflection}, {refraction}, {position}, {repose}, {fraction}, see {Commutation}, {Draught}, {Incidence}, {Reflection}, {Refraction}, etc. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtuse-angled \Ob*tuse"-an`gled\, obtuse-angular \ob*tuse"-an`gu*lar\, a. Having an obtuse angle; as, an obtuse-angled triangle. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtuse-angled \Ob*tuse"-an`gled\, obtuse-angular \ob*tuse"-an`gu*lar\, a. Having an obtuse angle; as, an obtuse-angled triangle. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtusely \Ob*tuse"ly\, adv. In an obtuse manner. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtuseness \Ob*tuse"ness\, n. State or quality of being obtuse. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtuse \Ob*tuse"\ a. [Compar. {Obtuser}; superl. {Obtusest}.] [L. obtusus, p. p. of obtundere to blunt: cf. F. obtus. See {Obtund}.] 1. Not pointed or acute; blunt; -- applied esp. to angles greater than a right angle, or containing more than ninety degrees. 2. Not having acute sensibility or perceptions; dull; stupid; as, obtuse senses. --Milton. 3. Dull; deadened; as, obtuse sound. --Johnson. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtuse \Ob*tuse"\ a. [Compar. {Obtuser}; superl. {Obtusest}.] [L. obtusus, p. p. of obtundere to blunt: cf. F. obtus. See {Obtund}.] 1. Not pointed or acute; blunt; -- applied esp. to angles greater than a right angle, or containing more than ninety degrees. 2. Not having acute sensibility or perceptions; dull; stupid; as, obtuse senses. --Milton. 3. Dull; deadened; as, obtuse sound. --Johnson. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtusion \Ob*tu"sion\, n. [L. obtusio, from obtundere to blunt. See {Obtund}.] 1. The act or process of making obtuse or blunt. 2. The state of being dulled or blunted; as, the obtusion of the senses. --Harvey. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Obtusity \Ob*tu"si*ty\, n. Obtuseness. --Lond. Quart. Rev. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Equator \E*qua"tor\, n. [L. aequator one who equalizes: cf. F. [82]quateur equator. See {Equate}.] 1. (Geog.) The imaginary great circle on the earth's surface, everywhere equally distant from the two poles, and dividing the earth's surface into two hemispheres. 2. (Astron.) The great circle of the celestial sphere, coincident with the plane of the earth's equator; -- so called because when the sun is in it, the days and nights are of equal length; hence called also the {equinoctial}, and on maps, globes, etc., the {equinoctial line}. {Equator} {of the sun [or] of a planet} (Astron.), the great circle whose plane passes through through the center of the body, and is perpendicular to its axis of revolution. {Magnetic equator}. See {Aclinic}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Hook \Hook\, n. [OE. hok, AS. h[d3]c; cf. D. haak, G. hake, haken, OHG. h[be]ko, h[be]go, h[be]ggo, Icel. haki, Sw. hake, Dan. hage. Cf. {Arquebuse}, {Hagbut}, {Hake}, {Hatch} a half door, {Heckle}.] 1. A piece of metal, or other hard material, formed or bent into a curve or at an angle, for catching, holding, or sustaining anything; as, a hook for catching fish; a hook for fastening a gate; a boat hook, etc. 2. That part of a hinge which is fixed to a post, and on which a door or gate hangs and turns. 3. An implement for cutting grass or grain; a sickle; an instrument for cutting or lopping; a billhook. Like slashing Bentley with his desperate hook. --Pope. 4. (Steam Engin.) See {Eccentric}, and {V-hook}. 5. A snare; a trap. [R.] --Shak. 6. A field sown two years in succession. [Prov. Eng.] 7. pl. The projecting points of the thigh bones of cattle; -- called also {hook bones}. {By hook or by crook}, one way or other; by any means, direct or indirect. --Milton. [bd]In hope her to attain by hook or crook.[b8] --Spenser. {Off the hooks}, unhinged; disturbed; disordered. [Colloq.] [bd]In the evening, by water, to the Duke of Albemarle, whom I found mightly off the hooks that the ships are not gone out of the river.[b8] --Pepys. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Offtake \Off"take`\, n. [Off + take.] 1. Act of taking off; specif., the taking off or purchase of goods. 2. Something taken off; a deduction. 3. A channel for taking away air or water; also, the point of beginning of such a channel; a take-off. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Opeidoscope \O*pei"do*scope\, n. [Gr. [?], [?], voice + [?] form + -scope.] (Physics) An instrument, consisting of a tube having one end open and the other end covered with a thin flexible membrance to the center of which is attached a small mirror. It is used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds produced at the open end of the tube, as by speaking or singing into it. --A. E. Dolbear. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Ophidious \O*phid"i*ous\, a. Ophidian. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optic \Op"tic\, n. [From {Optic}, a.] 1. The organ of sight; an eye. The difference is as great between The optics seeing, as the object seen. --Pope. 2. An eyeglass. [Obs.] --Herbert. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optic \Op"tic\, Optical \Op"tic*al\, a. [F. optique, Gr. [?]; akin to [?] sight, [?] I have seen, [?] I shall see, and to [?] the two eyes, [?] face, L. oculus eye. See {Ocular}, {Eye}, and cf. {Canopy}, {Ophthalmia}.] 1. Of or pertaining to vision or sight. The moon, whose orb Through optic glass the Tuscan artist views. --Milton. 2. Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of {Brain}, and {Eye}. 3. Relating to the science of optics; as, optical works. {Optic angle} (Opt.), the angle included between the optic axes of the two eyes when directed to the same point; -- sometimes called {binocular parallax}. {Optic axis}. (Opt.) (a) A line drawn through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two. {Optical circle} (Opt.), a graduated circle used for the measurement of angles in optical experiments. {Optical square}, a surveyor's instrument with reflectors for laying off right angles. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optic \Op"tic\, Optical \Op"tic*al\, a. [F. optique, Gr. [?]; akin to [?] sight, [?] I have seen, [?] I shall see, and to [?] the two eyes, [?] face, L. oculus eye. See {Ocular}, {Eye}, and cf. {Canopy}, {Ophthalmia}.] 1. Of or pertaining to vision or sight. The moon, whose orb Through optic glass the Tuscan artist views. --Milton. 2. Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of {Brain}, and {Eye}. 3. Relating to the science of optics; as, optical works. {Optic angle} (Opt.), the angle included between the optic axes of the two eyes when directed to the same point; -- sometimes called {binocular parallax}. {Optic axis}. (Opt.) (a) A line drawn through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two. {Optical circle} (Opt.), a graduated circle used for the measurement of angles in optical experiments. {Optical square}, a surveyor's instrument with reflectors for laying off right angles. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Angle \An"gle\ ([acr][nsm]"g'l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. 'agky`los bent, crooked, angular, 'a`gkos a bend or hollow, AS. angel hook, fish-hook, G. angel, and F. anchor.] 1. The inclosed space near the point where two lines meet; a corner; a nook. Into the utmost angle of the world. --Spenser. To search the tenderest angles of the heart. --Milton. 2. (Geom.) (a) The figure made by. two lines which meet. (b) The difference of direction of two lines. In the lines meet, the point of meeting is the vertex of the angle. 3. A projecting or sharp corner; an angular fragment. Though but an angle reached him of the stone. --Dryden. 4. (Astrol.) A name given to four of the twelve astrological [bd]houses.[b8] [Obs.] --Chaucer. 5. [AS. angel.] A fishhook; tackle for catching fish, consisting of a line, hook, and bait, with or without a rod. Give me mine angle: we 'll to the river there. --Shak. A fisher next his trembling angle bears. --Pope. {Acute angle}, one less than a right angle, or less than 90[deg]. {Adjacent} or {Contiguous angles}, such as have one leg common to both angles. {Alternate angles}. See {Alternate}. {Angle bar}. (a) (Carp.) An upright bar at the angle where two faces of a polygonal or bay window meet. --Knight. (b) (Mach.) Same as {Angle iron}. {Angle bead} (Arch.), a bead worked on or fixed to the angle of any architectural work, esp. for protecting an angle of a wall. {Angle brace}, {Angle tie} (Carp.), a brace across an interior angle of a wooden frame, forming the hypothenuse and securing the two side pieces together. --Knight. {Angle iron} (Mach.), a rolled bar or plate of iron having one or more angles, used for forming the corners, or connecting or sustaining the sides of an iron structure to which it is riveted. {Angle leaf} (Arch.), a detail in the form of a leaf, more or less conventionalized, used to decorate and sometimes to strengthen an angle. {Angle meter}, an instrument for measuring angles, esp. for ascertaining the dip of strata. {Angle shaft} (Arch.), an enriched angle bead, often having a capital or base, or both. {Curvilineal angle}, one formed by two curved lines. {External angles}, angles formed by the sides of any right-lined figure, when the sides are produced or lengthened. {Facial angle}. See under {Facial}. {Internal angles}, those which are within any right-lined figure. {Mixtilineal angle}, one formed by a right line with a curved line. {Oblique angle}, one acute or obtuse, in opposition to a right angle. {Obtuse angle}, one greater than a right angle, or more than 90[deg]. {Optic angle}. See under {Optic}. {Rectilineal} or {Right-lined angle}, one formed by two right lines. {Right angle}, one formed by a right line falling on another perpendicularly, or an angle of 90[deg] (measured by a quarter circle). {Solid angle}, the figure formed by the meeting of three or more plane angles at one point. {Spherical angle}, one made by the meeting of two arcs of great circles, which mutually cut one another on the surface of a globe or sphere. {Visual angle}, the angle formed by two rays of light, or two straight lines drawn from the extreme points of an object to the center of the eye. {For Angles of commutation}, {draught}, {incidence}, {reflection}, {refraction}, {position}, {repose}, {fraction}, see {Commutation}, {Draught}, {Incidence}, {Reflection}, {Refraction}, etc. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optic \Op"tic\, Optical \Op"tic*al\, a. [F. optique, Gr. [?]; akin to [?] sight, [?] I have seen, [?] I shall see, and to [?] the two eyes, [?] face, L. oculus eye. See {Ocular}, {Eye}, and cf. {Canopy}, {Ophthalmia}.] 1. Of or pertaining to vision or sight. The moon, whose orb Through optic glass the Tuscan artist views. --Milton. 2. Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of {Brain}, and {Eye}. 3. Relating to the science of optics; as, optical works. {Optic angle} (Opt.), the angle included between the optic axes of the two eyes when directed to the same point; -- sometimes called {binocular parallax}. {Optic axis}. (Opt.) (a) A line drawn through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two. {Optical circle} (Opt.), a graduated circle used for the measurement of angles in optical experiments. {Optical square}, a surveyor's instrument with reflectors for laying off right angles. | |
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]: | |
d8Thalamus \[d8]Thal"a*mus\, n.; pl. {Thalami}. [L. thalamus chamber, Gr. qa`lamos.] 1. (Anat.) A mass of nervous matter on either side of the third ventricle of the brain; -- called also {optic thalamus}. 2. (Bot.) (a) Same as {Thallus}. (b) The receptacle of a flower; a torus. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optic \Op"tic\, Optical \Op"tic*al\, a. [F. optique, Gr. [?]; akin to [?] sight, [?] I have seen, [?] I shall see, and to [?] the two eyes, [?] face, L. oculus eye. See {Ocular}, {Eye}, and cf. {Canopy}, {Ophthalmia}.] 1. Of or pertaining to vision or sight. The moon, whose orb Through optic glass the Tuscan artist views. --Milton. 2. Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of {Brain}, and {Eye}. 3. Relating to the science of optics; as, optical works. {Optic angle} (Opt.), the angle included between the optic axes of the two eyes when directed to the same point; -- sometimes called {binocular parallax}. {Optic axis}. (Opt.) (a) A line drawn through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two. {Optical circle} (Opt.), a graduated circle used for the measurement of angles in optical experiments. {Optical square}, a surveyor's instrument with reflectors for laying off right angles. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optic \Op"tic\, Optical \Op"tic*al\, a. [F. optique, Gr. [?]; akin to [?] sight, [?] I have seen, [?] I shall see, and to [?] the two eyes, [?] face, L. oculus eye. See {Ocular}, {Eye}, and cf. {Canopy}, {Ophthalmia}.] 1. Of or pertaining to vision or sight. The moon, whose orb Through optic glass the Tuscan artist views. --Milton. 2. Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of {Brain}, and {Eye}. 3. Relating to the science of optics; as, optical works. {Optic angle} (Opt.), the angle included between the optic axes of the two eyes when directed to the same point; -- sometimes called {binocular parallax}. {Optic axis}. (Opt.) (a) A line drawn through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two. {Optical circle} (Opt.), a graduated circle used for the measurement of angles in optical experiments. {Optical square}, a surveyor's instrument with reflectors for laying off right angles. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Biprism \Bi"prism\, n. [Pref. bi- + prism.] 1. A prism whose refracting angle is very nearly 180 degrees. 2. A combination of two short rectangular glass prisms cemented together at their diagonal faces so as to form a cube; -- called also {optical cube}. It is used in one form of photometer. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Parallax \Par"al*lax\, n. [Gr. [?] alternation, the mutual inclination of two lines forming an angle, fr. [?] to change a little, go aside, deviate; [?] beside, beyond + [?] to change: cf. F. parallaxe. Cf. {Parallel}.] 1. The apparent displacement, or difference of position, of an object, as seen from two different stations, or points of view. 2. (Astron.) The apparent difference in position of a body (as the sun, or a star) as seen from some point on the earth's surface, and as seen from some other conventional point, as the earth's center or the sun. {Annual parallax}, the greatest value of the heliocentric parallax, or the greatest annual apparent change of place of a body as seen from the earth and sun; as, the annual parallax of a fixed star. {Binocular parallax}, the apparent difference in position of an object as seen separately by one eye, and then by the other, the head remaining unmoved. {Diurnal}, [or] {Geocentric}, {parallax}, the parallax of a body with reference to the earth's center. This is the kind of parallax that is generally understood when the term is used without qualification. {Heliocentric parallax}, the parallax of a body with reference to the sun, or the angle subtended at the body by lines drawn from it to the earth and sun; as, the heliocentric parallax of a planet. {Horizontal parallax}, the geocentric parallx of a heavenly body when in the horizon, or the angle subtended at the body by the earth's radius. {Optical parallax}, the apparent displacement in position undergone by an object when viewed by either eye singly. --Brande & C. {Parallax of the cross wires} (of an optical instrument), their apparent displacement when the eye changes its position, caused by their not being exactly in the focus of the object glass. {Stellar parallax}, the annual parallax of a fixed star. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optic \Op"tic\, Optical \Op"tic*al\, a. [F. optique, Gr. [?]; akin to [?] sight, [?] I have seen, [?] I shall see, and to [?] the two eyes, [?] face, L. oculus eye. See {Ocular}, {Eye}, and cf. {Canopy}, {Ophthalmia}.] 1. Of or pertaining to vision or sight. The moon, whose orb Through optic glass the Tuscan artist views. --Milton. 2. Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of {Brain}, and {Eye}. 3. Relating to the science of optics; as, optical works. {Optic angle} (Opt.), the angle included between the optic axes of the two eyes when directed to the same point; -- sometimes called {binocular parallax}. {Optic axis}. (Opt.) (a) A line drawn through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two. {Optical circle} (Opt.), a graduated circle used for the measurement of angles in optical experiments. {Optical square}, a surveyor's instrument with reflectors for laying off right angles. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optically \Op"tic*al*ly\, adv. By optics or sight; with reference to optics. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
{Optically active}, {Optically inactive} (Chem. Physics), terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produce right-handed or left-handed circular polarization of light. {Optically positive}, {Optically negative}. See under {Refraction}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
{Optically active}, {Optically inactive} (Chem. Physics), terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produce right-handed or left-handed circular polarization of light. {Optically positive}, {Optically negative}. See under {Refraction}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
{Optically active}, {Optically inactive} (Chem. Physics), terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produce right-handed or left-handed circular polarization of light. {Optically positive}, {Optically negative}. See under {Refraction}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
{Optically active}, {Optically inactive} (Chem. Physics), terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produce right-handed or left-handed circular polarization of light. {Optically positive}, {Optically negative}. See under {Refraction}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optician \Op*ti"cian\, n. [Cf. F. opticien. See {Optic}, a.] 1. One skilled in optics. [R.] --A. Smith. 2. One who deals in optical glasses and instruments. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optics \Op"tics\, n. [Cf. F. optique, L. optice, Gr. [?] (sc. [?]). See {Optic}.] That branch of physical science which treats of the nature and properties of light, the laws of its modification by opaque and transparent bodies, and the phenomena of vision. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optigraph \Op"ti*graph\, n. [Optic + -graph: cf. F. opticographe. See {Optic}, a. ] A telescope with a diagonal eyepiece, suspended vertically in gimbals by the object end beneath a fixed diagonal plane mirror. It is used for delineating landscapes, by means of a pencil at the eye end which leaves the delineation on paper. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optocd2le \Op"to*c[d2]le\, d8Optocd2lia \[d8]Op`to*c[d2]"li*a\, n. [NL. optocoelia, fr. Gr. [?] optic + [?] a hollow.] (Anat.) The cavity of one of the optic lobes of the brain in many animals. --B. G. Wilder. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optogram \Op"to*gram\, n. [Optic + -gram: cf. F. optogramme.] (Physiol.) An image of external objects fixed on the retina by the photochemical action of light on the visual purple. See {Optography}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Optography \Op*tog"ra*phy\, n. [Optic + -graphy.] (Physiol.) The production of an optogram on the retina by the photochemical action of light on the visual purple; the fixation of an image in the eye. The object so photographed shows white on a purple or red background. See {Visual purple}, under {Visual}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Ovate-acuminate \O"vate-a*cu"mi*nate\, a. Having an ovate form, but narrowed at the end into a slender point. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Ovate-cylindraceous \O"vate-cyl`in*dra"ceous\, a. Having a form intermediate between ovate and cylindraceous. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Ovate-subulate \O"vate-su"bu*late\, a. Having an ovate form, but with a subulate tip or extremity. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Ovato-acuminate \O*va"to-a*cu"mi*nate\, a. Same as {Ovate-acuminate}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Ovato-cylindraceous \O*va"to-cyl`in*dra"ceous\, a. Same as {Ovate-cylindraceous}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Oviducal \O`vi*du"cal\, a. (Anat.) Of or pertaining to oviducts; as, oviducal glands. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Oviduct \O"vi*duct\, n. [Ovum + duct: cf. F. oviducte.] (Anat.) A tube, or duct, for the passage of ova from the ovary to the exterior of the animal or to the part where further development takes place. In mammals the oviducts are also called {Fallopian tubes}. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Ovotesttis \O`vo*test"tis\, n. [NL. See {Ovum}, and {Testis}.] (Zo[94]l.) An organ which produces both ova and spermatozoids; an hermaphrodite gland. | |
From U.S. Gazetteer (1990) [gazetteer]: | |
Obetz, OH (village, FIPS 57862) Location: 39.87670 N, 82.94065 W Population (1990): 3167 (1180 housing units) Area: 7.1 sq km (land), 0.0 sq km (water) | |
From U.S. Gazetteer (1990) [gazetteer]: | |
Opdyke, IL Zip code(s): 62872 | |
From U.S. Gazetteer (1990) [gazetteer]: | |
Opdyke West, TX (town, FIPS 54075) Location: 33.59115 N, 102.29948 W Population (1990): 100 (39 housing units) Area: 0.6 sq km (land), 0.0 sq km (water) | |
From Jargon File (4.2.0, 31 JAN 2000) [jargon]: | |
optical diff n. See {vdiff}. | |
From Jargon File (4.2.0, 31 JAN 2000) [jargon]: | |
optical grep n. See {vgrep}. | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
OBDC Do you mean {ODBC}? (1996-06-30) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Carrier 12 {megabits} per second. [Matches {STS-12}]? (1997-05-26) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Carrier 3 {megabits} per second, which matches {STS-3}. (1997-02-05) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Carrier 48 {megabits} per second. [Matches {STS-48}]? (1997-05-26) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Carrier n per second. (1997-02-05) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Character Recognition written characters by computer. Each page of text is converted to a digital using a {scanner} and OCR is then applied to this image to produce a text file. This involves complex {image processing} {algorithms} and rarely achieves 100% accuracy so manual proof reading is recommended. (1999-08-26) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
optical diff {vdiff} | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
optical fiber {optical fibre} | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
optical fibre plastic or glass (silicon dioxide) fibre no thicker than a human hair used to transmit information using infra-red or even visible light as the carrier (usually a laser). The light beam is an electromagnetic signal with a frequency in the range of 10^14 to 10^15 Hertz. Optical fibre is less susceptible to external noise than other transmission media, and is cheaper to make than copper wire, but it is much more difficult to connect. Optical fibres are difficult to tamper with (to monitor or inject data in the middle of a connection), making them appropriate for secure communications. The light beams do not escape from the medium because the material used provides total internal reflection. {AT&T} {Bell Laboratories} in the United States managed to send information at a rate of 420 megabits per second, over 161.5 km through an optical fibre cable. In Japan, 445.8 megabits per second was achieved over a shorter distance. At this rate, the entire text of the Encyclopedia Britannica could be transmitted in one second. Currently, AT&T is working on a world network to support high volume data transmission, international computer networking, {electronic mail} and voice communications (a single fibre can transmit 200 million telephone conversations simultaneously). See also {FDDI}, {Optical Carrier n}, {SONET}. (1997-05-26) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
optical grep {vgrep} | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Mark Reader carefully placed pencil marks on specially designed documents. OMR is frequenty used in forms, questionnaires, and answer-sheets. (1995-04-13) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
optical mouse infrared to detect changes in its position. (1999-07-21) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Storage Technology Association (OSTA) An industry consortium concerned with {optical storage}. OSTA wrote and maintains the {UDF} {file system} used on {DVD video} discs. {OSTA Home (http://www.osta.org/)}. (2003-07-12) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Time Domain Reflectometer Reflectometry}. (1995-02-01) | |
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
Optical Time Domain Reflectometry Measurement of the elapsed time and intensity of light reflected on {optical fibre} using an optical time domain reflectometer. The reflectometer can compute the distance to problems on the fibre such as attenuation and breaks, making it a useful tool in optical network trouble-shooting. (1995-02-01) |