from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Trapped air that supports a vehicle a short distance above the surface of land or water.
  • n. A device that uses trapped air to absorb the shock of motion, especially in vehicles. Also called air spring.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a layer of trapped air that supports a hovercraft
  • n. a shock absorber that uses an air chamber
  • n. a rubber or plastic inflatable cushion

from the GNU version of the Collaborative International Dictionary of English

  • n. an air-tight cushion which can be inflated; also, a device for arresting motion without shock by confined air.

from The Century Dictionary and Cyclopedia

  • n. A bag made of an air-tight fabric used when inflated with air as a cushion for a seat.
  • n. Same as air-bag.
  • n. A ball or cylinder (usually of india-rubber) filled with air and placed in a water-pipe, to act as a cushion for the water, or to receive the pressure or shock caused by a sudden stoppage of its flow, or by the expansion of the water in freezing.
  • n. Same as air-spring or pneumatic spring.
  • n.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the trapped air that supports a hovercraft a short distance above the water or ground
  • n. a cushion usually made of rubber or plastic that can be inflated
  • n. a mechanical device using confined air to absorb the shock of motion


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