Autogiro meaning

ôtō-jīrō
An aircraft powered by a conventional propeller and supported in flight by a freewheeling, horizontal rotor that provides lift.
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An aircraft that moves forward by means of a propeller and is supported in the air mainly by means of a large rotor mounted horizontally above the fuselage and turned by air pressure rather than motor power: largely superseded by the helicopter.
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(aircraft) An aircraft in which lift is provided by unpowered rotating wings and thrust is provided by a conventional propeller.
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Other Word Forms

Noun

Singular:
autogiro
Plural:
autogiros

Origin of autogiro

  • Originally a trademark

    From American Heritage Dictionary of the English Language, 5th Edition