valve

Inflections of 'valve' (v): (⇒ conjugate)

valve n., v., valved, valv•ing.
n. [countable]

any device for halting or controlling the flow of something, as a liquid, through a pipe or other passage.
a hinged lid or other movable part that closes or changes the passage in such a device.
a structure in the body that permits the flow of a fluid, as blood, in one direction only:a heart valve.
Music and Dance(in musical wind instruments of the trumpet class) a device for changing the length of the air column so as to alter the pitch of a tone.
Zoologyone of the two or more separable pieces that make up certain shells:the valves of a clamshell.

v. [~ + object]

valve n., v., valved, valv•ing.

any device for halting or controlling the flow of a liquid, gas, or other material through a passage, pipe, inlet, outlet, etc.
a hinged lid or other movable part that closes or modifies the passage in such a device.
[Anat.]a membranous fold or other structure that controls the flow of a fluid, as one that permits blood to flow in one direction only.
Music and Dance(in musical wind instruments of the trumpet class) a device for changing the length of the air column to alter the pitch of a tone.
Zoology
- one of the two or more separable pieces composing certain shells.
- either half of the silicified shell of a diatom.
[Bot.]
- Botanyone of the segments into which a capsule dehisces.
- Botanya flap or lidlike part of certain anthers.
ElectronicsSee vacuum tube (def. 1).
[Archaic.]one of the leaves of a double or folding door.

v.t.

to provide with a means of controlling the flow of liquid, gas, etc., by inserting a valve.

valve′less, adj.
valve′like′, adj.

Collins Concise English Dictionary © HarperCollins Publishers::

valve /vælv/ n

any device that shuts off, starts, regulates, or controls the flow of a fluid
a flaplike structure in a hollow organ, such as the heart, that controls the one-way passage of fluid through that organ
Also called: tube, vacuum tube an evacuated electron tube containing a cathode, anode, and, usually, one or more additional control electrodes. When a positive potential is applied to the anode, electrons emitted from the cathode are attracted to the anode, constituting a flow of current which can be controlled by a voltage applied to the grid to produce amplification, oscillation, etc See also diode, triode, tetrode, pentode
any of the separable pieces that make up the shell of a mollusc
a device on some brass instruments by which the effective length of the tube may be varied to enable a chromatic scale to be produced
any of the several parts that make up a dry dehiscent fruit, esp a capsule
archaic a leaf of a double door or of a folding door

Etymology: 14th Century: from Latin valva a folding doorˈvalveless adj ˈvalveˌlike adj

'valve' also found in these entries (note: many are not synonyms or translations):

Collocations: the valve stem, need a valve replacement, adjust the valve timing, more...

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