airbrake

Noun
  1. is a type of: constraint, restraint - a device that retards something's motion
    same as: dive brake
  2. is a type of: power brake - a brake on an automobile that magnifies a small force applied to the brake pedal into a proportionately larger force applied to slow or stop the vehicle
    is a part of: automotive vehicle, motor vehicle - a self-propelled wheeled vehicle that does not run on rails

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