airbrakes

/EH1 R B R EY1 K S/
noun
  1. 1

    A brake (slowing device) that is operated pneumatically (by air pressure).

    โ€œThe powerful airbrake of the truck quickly brought it to a stop.โ€

  2. 2

    A moving part of an aircraft wing to reduce lift and airspeed.

Source: https://en.wiktionary.org/wiki/airbrake, https://en.wiktionary.org/wiki/airbrakes