valve

1. A device that controls the flow of a gas or fluid through a space, such as a pipe, manifold, or plenum.

   open the valve

   close the valve

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

2. A device that controls the flow of a gas or fluid through a space, such as a pipe, manifold, or plenum.

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

   Near-synonym: poppet valve

   In nearly all internal combustion engines, the valves are of the poppet type.

   Ventil, Ventil, Armatur

   кла́панklápan, ве́нтильvéntilʹ, кла́панklápan

   кла́панklápan, ве́нтильvéntylʹ

3. 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 ileocecal valve

   the atrioventricular valves

   Klappe

   кла́панklápan

   кла́панklápan

4. One of the leaves of a folding door or of a window sash.

5. (UK)A vacuum tube.

6. One of the pieces into which certain fruits naturally separate when they dehisce.

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

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

9. One of the two similar portions of the shell of a diatom.

1. The main valve is turned off.

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2. Why did you replace the valve?

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3. Why are you replacing the valve?

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4. I can play a valve trombone but not a slide trombone.

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5. The valve is open.

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regular