air chamber

American  

noun

1. a chamber containing air, as in a pump, lifeboat, or organic body.

2. Also called air cushion.  a compartment of a hydraulic system containing air that by its elasticity equalizes the pressure and flow of liquid within the system.

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Etymology

Origin of air chamber

First recorded in 1840–50

Example Sentences

A protective cap prevents debris from entering, while a small air chamber allows airflow.

From Science Daily • Apr. 19, 2026

Inflating the air chamber forces the fins to bend -- similar to the down stroke when a manta flaps its fins.

From Science Daily • Dec. 4, 2024

She says she's happy to breathe in pollution in the name of science - and passes the hours hooked up to the air chamber by reading a book.

From BBC • Dec. 15, 2023

There’s a third air chamber located near the bottom of the mouth area, but it’s passive and doesn’t feature a fan.

From The Verge • Oct. 21, 2021

The air chamber is large and the sounds emitted are full and melodious and are lower in pitch than those of any other instrument in the collection.

From Ancient art of the province of Chiriqui, Colombia Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-1885, Government Printing Office, Washington, 1888, pages 3-188 by Holmes, William Henry