air cushion
American Heritage Dictionary:
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air cushion
n.
- Trapped air that supports a vehicle a short distance above the surface of land or water.
- A device that uses trapped air to absorb the shock of motion, especially in vehicles. Also called air spring.
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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