Meaning of VALVE in English

n.1 a device for controlling the passage of fluid through a pipe etc., esp. an automatic device allowing movement in one direction only.

2 Anat. & Zool. a membranous part of an organ etc. allowing a flow of blood etc. in one direction only.

3 Brit. thermionic valve.

4 a device to vary the effective length of the tube in a brass musical instrument.

5 each of the two shells of an oyster, mussel, etc.

6 Bot. each of the segments into which a capsule or dry fruit dehisces.

7 archaic a leaf of a folding door.


valvate adj. valved adj. (also in comb.). valveless adj. valvule n.

Etymology: ME f. L valva leaf of a folding door

Oxford English vocab.      Оксфордский английский словарь.