Definition of autogiro
: a rotary-wing aircraft that employs a propeller for forward motion and a freely rotating rotor for lift
Recent Examples of autogiro from the Web
The Autogyro Spanish engineer Juan de la Cierva invented and first flew his autogiro in Madrid in January 1923.
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Origin and Etymology of autogiro
from Autogiro, a trademark
First Known Use: 1907See Words from the same year
Learn More about autogiro
Britannica.com: Encyclopedia article about autogiro
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