air cushion
noun
1.
an inflatable, airtight cushion.
2.
air chamber
(def 2).
3.
an air bag.
Origin
1830-40
Related forms
air-cushioned,
adjective
Examples from the web for
air cushion
Older,
air cushion
type tanks, in which the air is directly exposed to the geothermal water are not recommended.
Masks must be clear and have an inflatable
air cushion
.
British Dictionary definitions for
air cushion
air cushion
noun
1.
an inflatable cushion, usually made of rubber or plastic
2.
the pocket of air that supports a hovercraft
3.
a form of pneumatic suspension consisting of a constricted volume of air
See also
air spring