valve
Nouns
- (n) a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
- (n) device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
- (n) control consisting of a mechanical device for controlling the flow of a fluid
- (n) the entire one-piece shell of a snail and certain other molluscs
- (n) one of the paired hinged shells of certain molluscs and of brachiopods