Dictionary
autorotation
noun au·to·ro·ta·tion \-rō-ˈtā-shən\
Definition of AUTOROTATION
: the turning of the rotor of an autogiro or a helicopter with the resulting lift caused solely by the aerodynamic forces induced by motion of the rotor along its flight path
— au·to·ro·tate \-ˈrō-ˌtāt\ intransitive verb
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First Known Use of AUTOROTATION
1926
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