autogiro

or au·to·gy·ro

[ aw-tuh-jahy-roh ]
/ ˌɔ təˈdʒaɪ roʊ /

noun, plural au·to·gi·ros.

an aircraft with an unpowered, horizontally rotating propeller on a shaft above the fuselage that provides lift for the machine, with forward propulsion being provided by a conventional propeller: superseded in most applications by the helicopter.

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Also called gyrocopter, gyroplane.

Origin of autogiro

First recorded in 1920–25; formerly a trademark
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for autogiro

British Dictionary definitions for autogiro

autogiro

autogyro

/ (ˌɔːtəʊˈdʒaɪrəʊ) /

noun plural -ros

a self-propelled aircraft supported in flight mainly by unpowered rotating horizontal bladesAlso called: gyroplane Compare helicopter

Word Origin for autogiro

C20: originally a trademark
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012