airbrake

== English == === Alternative forms === air brake (usually only for air-actuated brakes, not aerodynamic brakes) === Etymology === From air +‎ brake. === Noun === airbrake (plural airbrakes) A brake (slowing device) that is operated pneumatically (by air pressure). (aviation) A movable control surface that extends to increase drag without affecting lift (unlike a spoiler); a device that provides aerodynamic braking. ==== Related terms ==== air-braked ==== Translations ====