air cushion

an inflatable, airtight cushion.

an air bag.

Origin of air cushion

First recorded in 1830–40

air-cush·ioned, adjective

"Catch me a-ridin' of an 'orse again without an air-cushion," he muttered as he came out of the public-bar wiping his mouth.

Adventures of Bindle |Herbert George Jenkins
They lunged forward and lifted up to air-cushion jet drive at just over two hundred miles an hour.

Code Three |Rick Raphael
The air-cushion should be about one-tenth the depth of the elevator shaft; in high buildings it may be a well 20 or 30 ft. deep.

Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 |Various
The simplest and, where practicable, most certain of them is the “air-cushion”, a chamber Safety devices.

Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 |Various

A sectional view of the air-cushion is offered as a part of this communication.

Scientific American Supplement, No. 365, December 30, 1882 |Various

air cushion

an inflatable cushion, usually made of rubber or plastic

the pocket of air that supports a hovercraft

a form of pneumatic suspension consisting of a constricted volume of air See also air spring