air brake
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noun
a brake or system of brakes operated by compressed air.
Aeronautics. a device for reducing the air speed of an aircraft by increasing its drag.
a device for stopping the sails of a windmill by disrupting the flow of air around them.
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Origin of air brake
An Americanism dating back to 1870–75
Words nearby air brake
air-bone gap, airborne, airborne alert, airborne command post, air-bound, air brake, airbrasive, air-breathe, air-breather, air brick, air bridge
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for air brake
British Dictionary definitions for air brake
air brake
noun
a brake operated by compressed air, esp in heavy vehicles and trains
Also called: dive brake an articulated flap or small parachute for reducing the speed of an aircraft
a rotary fan or propeller connected to a shaft to reduce its speed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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