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Definition of air chamber
: a cavity filled with air: such as
a : a cavity containing air to act by its elasticity as a spring for equalizing the flow of a liquid in a pump or other hydraulic machine
b : one of the chambers in the nautilus or other chambered cephalopods
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Merriam-Webster unabridgedWords at Play
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Time Traveler for air chamber
The first known use of air chamber was in 1664
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