noun. ['ˈɛrˌspiːd'] the speed of an aircraft relative to the air in which it is flying.
1. Verb, past participle Takeoff in an airplane requires airspeed. 2. Noun, singular or mass When the airspeed over the wings is high enough, the plane will lift off the ground. 3. Adjective This calculation is gained via the aircraft's airspeed indicator.
