1. past tense of autorotate; rotated automatically or by its own power
Usage: technical
2. descended in an aircraft using autorotation (unpowered rotor rotation)
Usage: aviation

Examples

• The helicopter autorotated safely to the ground after engine failure.
• The rotor blades autorotated as the aircraft descended.
• The pilot successfully autorotated the helicopter during the emergency landing.
• The turbine autorotated in the wind stream.
• When the engine quit, the helicopter autorotated down to the field.
• The propeller autorotated as the plane glided downward.