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valve

 
 
pronunciation:
vaelv
features:
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part of speech: noun
definition 1: a device that controls the flow of a liquid or gas through a pipe or tube.
The plumber closed the valve before repairing the faucet.
 
similar words:
cock, tap
definition 2: a flap that controls the flow of a liquid in the body.
Heart valves control the flow of blood through the heart.
similar words:
quality
definition 3: a device that controls the flow of air in a musical instrument such as the trumpet. A valve makes the sound of an instrument higher or lower.
derivations: valveless (adj.), valvelike (adj.)
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  instrument, mollusk, tool, water