DEEn Dictionary De - En
DeEs De - Es
DePt De - Pt
 Vocabulary trainer

Spec. subjects Grammar Abbreviations Random search Preferences
Search in Sprachauswahl
valve
Search for:
Mini search box
 
English Dictionary: valve by the DICT Development Group
4 results for valve
From WordNet (r) 3.0 (2006) [wn]:
valve
n
  1. a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
  2. device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
  3. control consisting of a mechanical device for controlling the flow of a fluid
  4. the entire one-piece shell of a snail and certain other molluscs
  5. one of the paired hinged shells of certain molluscs and of brachiopods
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Induction \In*duc"tion\, n. [L. inductio: cf. F. induction. See
      {Induct}.]
      1. The act or process of inducting or bringing in;
            introduction; entrance; beginning; commencement.
  
                     I know not you; nor am I well pleased to make this
                     time, as the affair now stands, the induction of
                     your acquaintance.                              --Beau. & Fl.
  
                     These promises are fair, the parties sure, And our
                     induction dull of prosperous hope.      --Shak.
  
      2. An introduction or introductory scene, as to a play; a
            preface; a prologue. [Obs.]
  
                     This is but an induction: I will d[?]aw The curtains
                     of the tragedy hereafter.                  --Massinger.
  
      3. (Philos.) The act or process of reasoning from a part to a
            whole, from particulars to generals, or from the
            individual to the universal; also, the result or inference
            so reached.
  
                     Induction is an inference drawn from all the
                     particulars.                                       --Sir W.
                                                                              Hamilton.
  
                     Induction is the process by which we conclude that
                     what is true of certain individuals of a class, is
                     true of the whole class, or that what is true at
                     certain times will be true in similar circumstances
                     at all times.                                    --J. S. Mill.
  
      4. The introduction of a clergyman into a benefice, or of an
            official into a office, with appropriate acts or
            ceremonies; the giving actual possession of an
            ecclesiastical living or its temporalities.
  
      5. (Math.) A process of demonstration in which a general
            truth is gathered from an examination of particular cases,
            one of which is known to be true, the examination being so
            conducted that each case is made to depend on the
            preceding one; -- called also {successive induction}.
  
      6. (Physics) The property by which one body, having
            electrical or magnetic polarity, causes or induces it in
            another body without direct contact; an impress of
            electrical or magnetic force or condition from one body on
            another without actual contact.
  
      {Electro-dynamic induction}, the action by which a variable
            or interrupted current of electricity excites another
            current in a neighboring conductor forming a closed
            circuit.
  
      {Electro-magnetic induction}, the influence by which an
            electric current produces magnetic polarity in certain
            bodies near or around which it passes.
  
      {Electro-static induction}, the action by which a body
            possessing a charge of statical electricity develops a
            charge of statical electricity of the opposite character
            in a neighboring body.
  
      {Induction coil}, an apparatus producing induced currents of
            great intensity. It consists of a coil or helix of stout
            insulated copper wire, surrounded by another coil of very
            fine insulated wire, in which a momentary current is
            induced, when a current (as from a voltaic battery),
            passing through the inner coil, is made, broken, or
            varied. The inner coil has within it a core of soft iron,
            and is connected at its terminals with a condenser; --
            called also {inductorium}, and {Ruhmkorff's coil}.
  
      {Induction pipe}, {port}, [or] {valve}, a pipe, passageway,
            or valve, for leading or admitting a fluid to a receiver,
            as steam to an engine cylinder, or water to a pump.
  
      {Magnetic induction}, the action by which magnetic polarity
            is developed in a body susceptible to magnetic effects
            when brought under the influence of a magnet.
  
      {Magneto-electric induction}, the influence by which a magnet
            excites electric currents in closed circuits.
  
      {Logical induction}, (Philos.), an act or method of reasoning
            from all the parts separately to the whole which they
            constitute, or into which they may be united collectively;
            the operation of discovering and proving general
            propositions; the scientific method.
  
      {Philosophical induction}, the inference, or the act of
            inferring, that what has been observed or established in
            respect to a part, individual, or species, may, on the
            ground of analogy, be affirmed or received of the whole to
            which it belongs. This last is the inductive method of
            Bacon. It ascends from the parts to the whole, and forms,
            from the general analogy of nature, or special
            presumptions in the case, conclusions which have greater
            or less degrees of force, and which may be strengthened or
            weakened by subsequent experience and experiment. It
            relates to actual existences, as in physical science or
            the concerns of life. Logical induction is founded on the
            necessary laws of thought; philosophical induction, on the
            interpretation of the indications or analogy of nature.

From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Valve \Valve\, n. [L. valva the leaf, fold, or valve of a door:
      cf. F. valve.]
      1. A door; especially, one of a pair of folding doors, or one
            of the leaves of such a door.
  
                     Swift through the valves the visionary fair
                     Repassed.                                          --Pope.
  
                     Heavily closed, . . . the valves of the barn doors.
                                                                              --Longfellow.
  
      2. A lid, plug, or cover, applied to an aperture so that by
            its movement, as by swinging, lifting and falling,
            sliding, turning, or the like, it will open or close the
            aperture to permit or prevent passage, as of a fluid.
  
      Note: A valve may act automatically so as to be opened by the
               effort of a fluid to pass in one direction, and closed
               by the effort to pass in the other direction, as a
               clack valve; or it may be opened or closed by hand or
               by mechanism, as a screw valve, or a slide valve.
  
      3. (Anat.) One or more membranous partitions, flaps, or
            folds, which permit the passage of the contents of a
            vessel or cavity in one direction, but stop or retard the
            flow in the opposite direction; as, the ileocolic, mitral,
            and semilunar valves.
  
      4. (Bot.)
            (a) One of the pieces into which a capsule naturally
                  separates when it bursts.
            (b) One of the two similar portions of the shell of a
                  diatom.
            (c) A small portion of certain anthers, which opens like a
                  trapdoor to allow the pollen to escape, as in the
                  barberry.
  
      5. (Zo[94]l.) One of the pieces or divisions of bivalve or
            multivalve shells.
  
      {Air valve}, {Ball valve}, {Check valve}, etc. See under
            {Air}. {Ball}, {Check}, etc.
  
      {Double-beat valve}, a kind of balance valve usually
            consisting of a movable, open-ended, turban-shaped shell
            provided with two faces of nearly equal diameters, one
            above another, which rest upon two corresponding seats
            when the valve is closed.
  
      {Equilibrium valve}.
            (a) A balance valve. See under {Balance}.
            (b) A valve for permitting air, steam, water, etc., to
                  pass into or out of a chamber so as to establish or
                  maintain equal pressure within and without.
  
      {Valve chest} (Mach.), a chamber in which a valve works;
            especially (Steam Engine), the steam chest; -- called in
            England {valve box}, and {valve casing}. See {Steam
            chest}, under {Steam}.
  
      {Valve face} (Mach.), that part of the surface of a valve
            which comes in contact with the {valve seat}.
  
      {Valve gear}, [or] {Valve motion} (Steam Engine), the system
            of parts by which motion is given to the valve or valves
            for the distribution of steam in the cylinder. For an
            illustration of one form of valve gear, see {Link motion}.
           
  
      {Valve seat}. (Mach.)
            (a) The fixed surface on which a valve rests or against
                  which it presses.
            (b) A part or piece on which such a surface is formed.
  
      {Valve stem} (Mach.), a rod attached to a valve, for moving
            it.
  
      {Valve yoke} (Mach.), a strap embracing a slide valve and
            connecting it to the valve stem.

From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
   valve
  
      UK term for a {vacuum tube}.
  
      (1996-01-10)
  
  
No guarantee of accuracy or completeness!
©TU Chemnitz, 2006-2019
Your feedback:
Ad partners


Sprachreise mit Sprachdirekt
Sprachreisen.org