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

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

The pollutant levels are carefully measured and controlled, then fed into an air chamber - essentially a room-sized plastic sac - and piped out to the volunteers to breathe in.

From BBC • Dec. 15, 2023

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

Captain Hines, with infinite labor made an opening through the floor of his cell into the air chamber.

From Raiding with Morgan by Dunn, Byron A. (Byron Archibald)