VS.

Valve vs. Stopcock

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Valvenoun

A device that controls the flow of a gas or fluid through a pipe.

Stopcocknoun

A valve, tap or faucet which regulates the flow of liquid or gas through a pipe.

Valvenoun

A device that admits fuel and air into the cylinder of an internal combustion engine, or one that allows combustion gases to exit.

Stopcocknoun

(British) A main shutoff for water to a home from a municipal supply. Usually these valves exist in pairs, one outside the property boundary and one inside the property boundary.

‘If you have a burst pipe turn the water off at the stopcock.’;

Valvenoun

(anatomy) 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 control the flow in the opposite direction

‘the ileocolic, mitral, and semilunar valves’;

Stopcocknoun

A bib, faucet, or short pipe, fitted with a turning stopper or plug for permitting or restraining the flow of a liquid or gas; a cock or valve for checking or regulating the flow of water, gas, etc., through or from a pipe, etc.

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Valvenoun

One of the leaves of a folding door.

Stopcocknoun

The turning plug, stopper, or spigot of a faucet.

Valvenoun

(British) A vacuum tube.

Stopcocknoun

faucet consisting of a rotating device for regulating flow of a liquid

Valvenoun

(botany) One of the pieces into which certain fruits naturally separate when they dehisce.

Stopcocknoun

an externally operated valve regulating the flow of a liquid or gas through a pipe, in particular one on the water main supplying a house

‘in many houses, the main stopcock is situated under the kitchen sink’;

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Valvenoun

(botany) A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, such as in the barberry.

Stopcock

A stopcock is a form of valve used to control the flow of a liquid or gas. The term is not precise and is applied to many different types of valve.

Valvenoun

(biology) One of the pieces or divisions of bivalve or multivalve shells.

Valvenoun

(biology) One of the two similar portions of the shell of a diatom.

Valveverb

(transitive) To control (flow) by means of a valve.

Valvenoun

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 fairRepassed.’; ‘Heavily closed, . . . the valves of the barn doors.’;

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Valvenoun

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.

Valvenoun

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.

Valvenoun

One of the pieces into which a capsule naturally separates when it bursts.

Valvenoun

One of the pieces or divisions of bivalve or multivalve shells.

Valvenoun

a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it

Valvenoun

device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone

Valvenoun

control consisting of a mechanical device for controlling the flow of a fluid

Valvenoun

a device for controlling the passage of fluid or air through a pipe, duct, etc., especially an automatic device allowing movement in one direction only

‘a valve shuts off the flow from the boiler when the water is hot enough’;

Valvenoun

short for thermionic valve

Valvenoun

a cylindrical mechanism in a brass instrument which, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes.

Valvenoun

a membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, which maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow

‘the aortic valve’;

Valvenoun

each of the halves of the hinged shell of a bivalve mollusc or brachiopod, or of the parts of the compound shell of a barnacle.

Valvenoun

each of the halves or sections into which a dry fruit (especially a pod or capsule) dehisces.

Valve

A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category.

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