autogiro

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noun au·to·gi·ro \ˌȯ-tō-ˈjī-(ˌ)rō\
variants: or

autogyro

Definition of autogiro

plural

autogiros

  1. :  a rotary-wing aircraft that employs a propeller for forward motion and a freely rotating rotor for lift

Origin and Etymology of autogiro

from Autogiro, a trademark


First Known Use: 1907


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