Definition of "air cushion" []

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

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Miss Brimley, the journal's editor, adjusted the air cushion beneath her and lit a cigarette."