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also au·to·gy·ro (ô′tō-jī′rō)
n. pl. au·to·gi·ros also au·to·gy·ros
An aircraft powered by a conventional propeller and supported in flight by a freewheeling, horizontal rotor that provides lift.

[Originally a trademark.]


(ˌɔːtəʊˈdʒaɪrəʊ) or


n, pl -ros
(Aeronautics) a self-propelled aircraft supported in flight mainly by unpowered rotating horizontal blades. Also called: gyroplane Compare helicopter
[C20: originally a trademark]


or au•to•gy•ro

(ˌɔ təˈdʒaɪ roʊ)

n., pl. -ros.
an aircraft with an unpowered propeller rotating horizontally to provide lift and a powered propeller for forward propulsion.
Also called gyroplane.
[1920–25; formerly a trademark]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.autogiro - an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades)autogiro - an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller
heavier-than-air craft - a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it


[ˈɔːtəʊˈdʒaɪərəʊ] Nautogiro m
References in periodicals archive ?
Military and civilian helicopters, autogiros and skydivers will perform daily at two air shows.
The award ceremony featured film footage from the 1930's of Miller piloting autogiros from the roof of the Philadelphia Post Office and scenes from the American Air Aces Show of Miller looping his Pitcairn PCA-2 autogiro.
These range from combat aircraft of the Su-27 and Su-30 families to amphibious aircraft and autogiros and also include ground equipment and simulators.
This includes airplanes, gliders and hang gliders, helicopters, autogiros, and ornithopters.