noun Date: 1871 a brake operated by a piston driven by compressed air, a surface that may be projected into the airstream for increasing drag and lowering the speed of an airplane
AIR BRAKE
Meaning of AIR BRAKE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012