valve

Noun
  1. A structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it (synset 105402629)
    is a type of: anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing and its construction and arrangement
    subtypes:
    is a part of: heart, pump, ticker - the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body
  2. Device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone (synset 104526831)
    is a type of: device - an instrumentality invented for a particular purpose
    is a part of: brass, brass instrument - 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
  3. Control consisting of a mechanical device for controlling the flow of a fluid (synset 104526448)
    is a type of: control, controller - a mechanism that controls the operation of a machine
    subtypes:
    • 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
    has:
    • handwheel - control consisting of a wheel whose rim serves as the handle by which a part is operated
    • handwheel - a wheel worked by hand
  4. The entire one-piece shell of a snail and certain other molluscs (synset 101907224)
    is a type of: shell - the hard largely calcareous covering of a mollusc or a brachiopod
  5. One of the paired hinged shells of certain molluscs and of brachiopods (synset 101907102)
    is a type of: shell - the hard largely calcareous covering of a mollusc or a brachiopod

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