· a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
Hypernym(s): structure, anatomical_structure, complex_body_part, bodily_structure, body_structure
· device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
Hypernym(s): device
· control consisting of a mechanical device for controlling the flow of a fluid
Hypernym(s): control, controller
· the entire one-piece shell of a snail and certain other molluscs
Hypernym(s): shell
· one of the paired hinged shells of certain molluscs and of brachiopods
Hypernym(s): shell