air chamber
Noun
Meaning
A chamber or cavity filled with air, in an animal or plant.
A cavity containing air to act as a spring for equalizing the flow of a liquid in a pump or other hydraulic machine.
Source: Webster's dictionarySynonyms
loafer
blister
air sac
air bladder
air cell
air space
air lock
inner tube
plenum chamber
air reservoir
moon pool
air tube
air cavity
air compartment
air plenum
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Examples
Beneath the bowl is an air chamber which serves to cool, dry, and mellow the smoke.
Reeds fixed on the inner side of the reed plate (within the comb's air chamber) respond to blowing, while those fixed on the outer side respond to suction.