valve

PRIMARY MEANINGS OF: valve

1	n	control consisting of a mechanical device for controlling the flow of a fluid
2	n	the entire one-piece shell of a snail and certain other molluscs

FULL DEFINITIONS OF: valve

Types:: show 11 types...; hide 11 types...; accelerator, throttle, throttle valve
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, clack valve, clapper valve
a simple valve with a hinge on one side; allows fluid to flow in only one direction; exhaust valve
a valve through which burned gases from a cylinder escape into the exhaust manifold; 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, escape cock, escape valve, relief valve, safety valve
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; automatic choke
a choke that automatically controls the flow of air to the carburetor

Type of:: control, controller
a mechanism that controls the operation of a machine

Types:: show 5 types...; hide 5 types...; 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; atrioventricular valve
either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atrium; semilunar valve
a heart valve with cusps shaped like half-moons; prevents blood from flowing back into the heart

Type of:: anatomical structure, bodily structure, body structure, complex body part, structure
a particular complex anatomical part of a living thing

Type of:: shell
the hard largely calcareous covering of a mollusc or a brachiopod

Type of:: shell
the hard largely calcareous covering of a mollusc or a brachiopod

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