valves

/V AE1 L V Z/
noun
  1. 1

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

  2. 2

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

  3. 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

    โ€œthe ileocolic, mitral, and semilunar valvesโ€

  4. 4

    One of the leaves of a folding-door, or a window-sash.

  5. 5

    A vacuum tube.

  6. 6

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

  7. 7

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

  8. 8

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

  9. 9

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

verb
  1. 1

    To control (flow) by means of a valve.

Source: https://en.wiktionary.org/wiki/valve, https://en.wiktionary.org/wiki/valves