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autogiro

[aw-tuh-jahy-roh] /ˌɔ təˈdʒaɪ roʊ/
noun, plural autogiros.
1.
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the fuselage that provides lift for the machine, with forward propulsion being provided by a conventional propeller: superseded in most applications by the helicopter.
Also, autogyro.
Also called gyrocopter, gyroplane.
Origin
1920-1925
1920-25; formerly a trademark
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for autogyro
  • As the autogyro moves forward, air blows upwards through it, making it spin.
British Dictionary definitions for autogyro

autogiro

/ˌɔːtəʊˈdʒaɪrəʊ/
noun (pl) -ros
1.
a self-propelled aircraft supported in flight mainly by unpowered rotating horizontal blades Also called gyroplane Compare helicopter
Word Origin
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
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Encyclopedia Article for autogyro

autogiro

rotary-wing aircraft, superseded after World War II by the more efficient helicopter. It employed a propeller for forward motion and a freely rotating, unmotorized rotor for lift. In searching for an aircraft that could be slowed down in flight and landed vertically, experimenters built many prototypes that were difficult to control in flight

Learn more about autogiro with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Word Value for autogyro

12
13
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