autorotation

[ aw-toh-roh-tey-shuhn ]

nounAeronautics.
  1. 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.

Origin of autorotation

1
First recorded in 1915–20; auto-1 + rotation

Other words from autorotation

  • au·to·ro·ta·tion·al, adjective

Words Nearby autorotation

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British Dictionary definitions for autorotation

autorotation

/ (ˌɔːtəʊrəʊˈteɪʃən) /


noun
  1. the continuous rotation of a body in an airflow, such as that of the rotor blades of a helicopter in an unpowered descent

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