valve

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it (Freq. 2)
• Derivationally related forms:
valvular, valvelet
• Hypernyms:
structure, anatomical structure, complex body part, bodily structure, body structure
• Hyponyms:
heart valve, cardiac valve, valvule, valvelet, valvula, ileocecal valve
• Part Holonyms:
heart, pump, ticker
2. device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone (Freq. 1)
• Derivationally related forms:
valvelet
• Hypernyms:
device
• Part Holonyms:
brass, brass instrument
3. control consisting of a mechanical device for controlling the flow of a fluid
• Derivationally related forms:
valvular, valvelet
• Hypernyms:
control, controller
• Hyponyms:
accelerator, throttle, throttle valve, ball valve, butterfly valve,
choke, clack valve, clack, clapper valve, exhaust valve, intake valve,
poppet, poppet valve, safety valve, relief valve, escape valve, escape cock,
escape, slide valve
• Part Meronyms:
handwheel
4. the entire one-piece shell of a snail and certain other molluscs
• Hypernyms:
shell
5. one of the paired hinged shells of certain molluscs and of brachiopods
• Hypernyms:
shell