air cushion
definition: a cushion usually made of rubber or plastic that can be inflated
example:
speech part: noun
synonyms:
inflatable cushion
definition: a mechanical device using confined air to absorb the shock of motion
example:
speech part: noun
synonyms:
air spring
definition: the trapped air that supports a hovercraft a short distance above the water or ground
example:
speech part: noun
synonyms: