ALL meanings of autorotation
au·to·ro·ta·tion
A a - noun autorotation the continuous rotation of a body in an airflow, such as that of the rotor blades of a helicopter in an unpowered descent 3
- noun autorotation the condition of flight occurring when lift is derived solely from the action of air upon the unpowered rotor of a moving helicopter or autogiro. 1
- noun autorotation The rotation of the blades of a helicopter driven solely by the action of ascending air. 1