air cushion

English Thesaurus

1. a cushion usually made of rubber or plastic that can be inflated (noun.artifact)

hypernym	:	cushion,
definition	:	a soft bag filled with air or a mass of padding such as feathers or foam rubber etc. (noun.artifact)

2. a mechanical device using confined air to absorb the shock of motion (noun.artifact)

hypernym	:	cushion, shock, shock absorber,
definition	:	a mechanical damper; absorbs energy of sudden impulses (noun.artifact)

3. the trapped air that supports a hovercraft a short distance above the water or ground (noun.substance)

hypernym	:	compressed air,
definition	:	air at a pressure greater than that of the atmosphere (noun.substance)