air cushion

air cushions

Definitions of air cushion
  1. noun
    a cushion usually made of rubber or plastic that can be inflated
    synonyms: inflatable cushion
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    type of:
    a soft bag filled with air or a mass of padding such as feathers or foam rubber etc.
  2. noun
    a mechanical device using confined air to absorb the shock of motion
    synonyms: air spring
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    type of:
    cushion, shock, shock absorber
    a mechanical damper; absorbs energy of sudden impulses
  3. noun
    the trapped air that supports a hovercraft a short distance above the water or ground
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    type of:
    compressed air
    air at a pressure greater than that of the atmosphere
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