valve

a device used to control the rate of flow in a line to open or shut off a line completely, or to serve as an automatic or semiautomatic safety device. Those used extensively include the check valve, gate valve, globe valve, needle valve, plug valve, and pressure relief valve.

Valve

A device for regulating the flow of fluid through a system.

Valve

A device to stop, start or regulate the flow of liquid or gas through or from piping.
Found on http://www.encyclo.co.uk/local/20933

Valve

A valve is a device 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 valves fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to...
Found on http://en.wikipedia.org/wiki/Valve

Valve

• (n.) One of the pieces or divisions of bivalve or multivalve shells. • (n.) 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. • (n.) One of the pi...
Found on http://thinkexist.com/dictionary/meaning/valve/

valve

(valv) a membranous fold in a canal or passage that prevents backward flow of material passing through it.
Found on http://www.encyclo.co.uk/local/21001

valve

noun control consisting of a mechanical device for controlling the flow of a fluid
Found on https://www.encyclo.co.uk/local/20974

valve

(biology) In animals, a structure for controlling the direction of the blood flow. In humans and other vertebrates, the contractions of the beating heart cause the correct blood flow into the arteries because a series of valves preven...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0029926.html

valve

(electronics) In electronics, a glass or metal tube containing gas at low pressure, which is used to control the flow of electricity in a circuit. The electron tube valve was developed by US radio engineer Lee de Forest (1873–1961) and is used to modify electrical signals. Three or more m...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0026943.html

valve

(technology) In technology, a device that controls the flow of a fluid. Inside a valve, a plug moves to widen or close the opening through which the fluid passes. Common valves include the cone or needle valve, globe valve, and butterfly valve, all named after the shape of the plug. Specialize...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0026942.html

Valve

[mollusc] Valve is an anatomical term applied to the shell of those molluscs that have a shell. Although in theory any mollusc shell can be termed a `valve`, the word is now most commonly applied to members of two classes of molluscs: the Bivalvia (clams) and the Polyplacophora (chitons), in other words, to those molluscs whose shells are n...
Found on http://en.wikipedia.org/wiki/Valve_(mollusc)

Valve

Valve noun [ Latin valva the leaf, fold, or valve of a door: confer French 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. « Heavi...
Found on http://www.encyclo.co.uk/webster/V/4

valve

a device that controls flow by opening and closing. For instance, fuel valve controls flow of fuel from fuel tank to carburetor. Intake valve controls flow of air-fuel mixture into cylinder.
Found on http://www.horizonsunlimited.com/gear-up/motorcycle-terms-and-glossary

valve

A device that controls the flow of a fluid through a pipe. ... One shell of a double shelled mollusc such as a clam or oyster. ... In botany terminology, a portion of an organ that has fragmented, of a capsule, the teeth like portions into which the dehiscing part of the pericarp splits at maturity. ... (09 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

Valve

A device that regulates water flow.
Found on http://www.encyclo.co.uk/local/20844

Valve

a device which controls fluid flow direction, pressure, or flow rate.
Found on http://www.encyclo.co.uk/local/21121

Valve

A human heart has four valves, two on the right and two on the left.
Found on http://www.encyclo.co.uk/local/20541

Valve

A hydraulic elevator mechanism that regulates the motion of the elevator by regulating the flow of oil.
Found on http://www.thyssenkruppelevator.com/glossary.html

Valve

A mechanism which may be opened or closed to permit or restrict the passage of a fluid or gas through an orifice.
Found on http://www.aeroplanemonthly.com/glossary/

valve

A membraneous structure within a tube that prevents the return flow of the contents passing through it. The veins of the extremities have valves.
Found on http://www.encyclo.co.uk/local/21447

valve

a portion of an organ that fragments or splits open, for example the teeth-like portions of a pericarp in a split (dehisced) capsule.
Found on http://en.wikipedia.org/wiki/Glossary_of_botanical_terms

Valve

A separable part of a pod; the units or pieces into which a capsule splits or divides in dehiscing.
Found on http://www.gardenology.org/wiki/Glossary_of_Gardening_Terms

Valve

a structure that allows fluid flow in only one direction
Found on http://www.medichecks.com/glossary.cfm?ltr=V

Valve

A valve is a device for controlling the passage of liquids and gases through pipes and other channels. Automatic valves, operated by the fluid itself, include pump valves of all kinds, safety-valves, and reducing valves. Mechanically operated valves, the movements of which have a definite time-relation to the movements of other parts, independently...
Found on http://www.probertencyclopaedia.com/browse/GV.HTM

valve

component of a cell which permits the flow of gas in one direction only NOTE - A valve has a characteristic venting or opening and closing pressure.
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=482-02-12
No exact match found