valve


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valve
top: closed check valve
bottom: open check valve

valve

 (vălv)
n.
1.
a. Any of various devices that regulate the flow of gases, liquids, or loose materials through piping or through apertures by opening, closing, or obstructing ports or passageways.
b. The movable control element of such a device.
c. A device in a brass wind instrument that can be opened or closed to change the pitch by altering the length of the air column in the tube.
2. Anatomy A membranous structure in a hollow organ or passage, as in an artery or vein, that folds or closes to prevent the return flow of the body fluid passing through it.
3. Biology
a. A piece of shell covering or enclosing certain mollusks or other invertebrates, especially the single one of a univalve mollusk or one of the paired hinged ones of a bivalve mollusk or brachiopod.
b. One of the two siliceous halves of the cell wall of a diatom.
4. One of the pieces into which a plant part splits at maturity, especially a segment of a fruit capsule or of certain anthers.
5. Chiefly British An electron tube or a vacuum tube.
6. Archaic Either half of a double or folding door.
tr.v. valved, valv·ing, valves
1. To provide with a valve.
2. To control by means of a valve.

[Middle English, leaf of a door, from Latin valva; see wel- in Indo-European roots.]

valve′less adj.

valve

(vælv)
n
1. (Mechanical Engineering) any device that shuts off, starts, regulates, or controls the flow of a fluid
2. (Anatomy) anatomy a flaplike structure in a hollow organ, such as the heart, that controls the one-way passage of fluid through that organ
3. (Electronics) Also called: tube or 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 diode2, triode1, tetrode, pentode
4. (Zoology) zoology any of the separable pieces that make up the shell of a mollusc
5. (Music, other) music 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
6. (Botany) botany
a. any of the several parts that make up a dry dehiscent fruit, esp a capsule
b. either of the two halves of a diatom cell wall
7. (Architecture) archaic a leaf of a double door or of a folding door
[C14: from Latin valva a folding door]
ˈvalveless adj
ˈvalveˌlike adj

valve

(vælv)

n., v. valved, valv•ing. n.
1. any device for halting or controlling the flow of something, as a liquid, through a pipe or other passage.
2. a hinged lid or other movable part that closes or modifies the passage in such a device.
3. a membranous structure that permits the flow of a fluid, as blood, in one direction only.
4. (in brass instruments) a device for changing the length of the air column to alter the pitch of a tone.
5. one of the two or more separable pieces composing certain shells: the valves of a clamshell.
6. Bot.
a. one of the segments into which a fruit capsule dehisces.
b. a flap or lidlike part of certain anthers.
7. Chiefly Brit. vacuum tube.
8. Archaic. one of the leaves of a double or folding door.
v.t.
9. to provide with a valve.
[1350–1400; Middle English < Latin valvae leaves of a door]
valve′less, adj.
valve′like`, adj.
val′vu•lar, val′val, val′var, adj.

valve

(vălv)
1.
a. Any of various mechanical devices that control the flow of liquids, gases, or loose material through pipes or channels by blocking and uncovering openings.
b. The movable part or element of such a device.
2. Any of various structures that prevent the backward flow of a body fluid. Examples include the valves between the chambers of the heart and the valves of the veins.
3. One of the paired hinged shells of certain mollusks, such as clams and oysters.

valve

(electronic) vacuum tube
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.valve - a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through itvalve - a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure"
ticker, heart, pump - the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body; "he stood still, his heart thumping wildly"
cardiac valve, heart valve - a valve to control one-way flow of blood
valvelet, valvula, valvule - a small valve
ileocecal valve - valve between the ileum of the small intestine and the cecum of the large intestine; prevents material from flowing back from the large to the small intestine
2.valve - device in a brass wind instrument for varying the length of the air column to alter the pitch of a tonevalve - device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
brass instrument, brass - a wind instrument that consists of a brass tube (usually of variable length) that is blown by means of a cup-shaped or funnel-shaped mouthpiece
device - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
3.valve - control consisting of a mechanical device for controlling the flow of a fluidvalve - control consisting of a mechanical device for controlling the flow of a fluid
throttle, throttle valve, accelerator - a valve that regulates the supply of fuel to the engine
ball valve - any valve that checks flow by the seating of a ball
butterfly valve - a valve in a carburetor that consists of a disc that turns and acts as a throttle
choke - a valve that controls the flow of air into the carburetor of a gasoline engine
clack valve, clapper valve, clack - a simple valve with a hinge on one side; allows fluid to flow in only one direction
controller, control - a mechanism that controls the operation of a machine; "the speed controller on his turntable was not working properly"; "I turned the controls over to her"
exhaust valve - a valve through which burned gases from a cylinder escape into the exhaust manifold
handwheel - control consisting of a wheel whose rim serves as the handle by which a part is operated
handwheel - a wheel worked by hand
intake valve - a valve that controls the flow of fluid through an intake
poppet, poppet valve - a mushroom-shaped valve that rises perpendicularly from its seat; commonly used in internal-combustion engines
escape cock, escape valve, relief valve, safety valve, escape - a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
slide valve - valve that opens and closes a passageway by sliding over a port
4.valve - the entire one-piece shell of a snail and certain other molluscs
shell - the hard largely calcareous covering of a mollusc or a brachiopod
5.valve - one of the paired hinged shells of certain molluscs and of brachiopods
shell - the hard largely calcareous covering of a mollusc or a brachiopod
Translations
صِمامصِمام الراديو او التلفِزْيونصِمام القَلْب
chlopeňventillampa
klapventil
klappventiil
läppäventtiili
rádiócsőszelep
lampilokaloki, ventill
elektroninė lempavožtuvas
elektronu lampavārstsvārstulisventilis
kapakçıkradyo/elektronik lâmbavalfvana

valve

[vælv]
A. N (Anat, Mech) → válvula f (Rad, TV) → lámpara f, válvula f (Bot, Zool) → valva f; [of musical instrument] → llave f
B. CPD valve tester Ncomprobador m de válvulas

valve

[ˈvælv] n
(in machine)soupape f
(on tyre)valve f
(ANATOMY) (in heart)valvule f
(in radio)lampe f

valve

n (Anat) → Klappe f; (Tech, on musical instrument) → Ventil nt; (in pipe system) → Absperrhahn m; (Rad, TV) → Röhre f; inlet/outlet valve (Aut) → Einlass-/Auslassventil nt

valve

[vælv] n (all senses) → valvola

valve

(vӕlv) noun
1. a device for allowing a liquid or gas to pass through an opening in one direction only.
2. a structure with the same effect in an animal body. Valves in the heart control the flow of blood in the human body.
3. a type of electronic component found in many, especially older, types of television, radio etc.

valve

n. válvula, valva, estructura membranosa en un canal u orificio que al cerrarse temporalmente impide el reflujo del contenido que pasa a través de ella;
aortic ______ aórtica;
aortic-semilunar ______ aórtica semilunar;
atrioventricular left ______ auriculoventricular izquierda;
atrioventricular right ___, tricuspid___ auriculoventricular derecha, tricúspide;
bicuspid or mitral ______ bicúspide o mitral;
ileocecal ______ ileocecal;
pulmonary ______ pulmonar;
pyloric ______ pilórica.

valve

n válvula; aortic — válvula aórtica; mitral — válvula mitral; pulmonic — válvula pulmonar; pyloric — válvula pilórica; tricuspid — válvula tricúspide
References in classic literature ?
Green's invention of the guide-rope,) the permission of the escape of gas from the valve ; but, in the loss of gas, is a proportionate general loss of ascending power ; so that, in a comparatively brief period, the best-constructed balloon must necessarily exhaust all its resources, and come to the earth.
A valve opened from one balloon into the other, and thus enabled the aeronaut to communicate with both.
The ripping-cord failed, and the valve wouldn't act.
By this time the craft was going down by the head with a most unpleasant list to port, and I didn't wait to transmit orders to some one else but ran as fast as I could for the valve that let the sea into the forward port diving-tank.
Two punctures and a leaking valve delayed them over an hour on the road.
I have grave doubts as to my mitral valve, if you would be so very good.
And this because the heart in thee is the heart of all; not a valve, not a wall, not an intersection is there anywhere in nature, but one blood rolls uninterruptedly an endless circulation through all men, as the water of the globe is all one sea, and, truly seen, its tide is one.
There is no visible deck, even: nothing but a long, black, ugly roof covered with burnt-out feathery sparks; above which tower two iron chimneys, and a hoarse escape valve, and a glass steerage-house.
In most land animals there are certain valves or flood-gates in many of their veins, whereby when wounded, the blood is in some degree at least instantly shut off in certain directions.
I should wish also that such persons were carefully shown the eleven pellicles which, like so many small valves, open and shut the four orifices that are in these two cavities, viz.
The fires were increased, the screw revolved forty-three times a minute, and the steam poured out of the valves.
Within the big valves of the door--which were open and broken--we found, instead of the customary hall, a long gallery lit by many side windows.