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autogiro

Syllabification: au·to·gi·ro
Pronunciation: /ˌôdōˈjīrō
 
/
(also autogyro)

Definition of autogiro in English:

noun (plural autogiros)

A form of aircraft with freely rotating horizontal vanes and a propeller. It differs from a helicopter in that the vanes are not powered but rotate in the slipstream, propulsion being by a conventional mounted engine.
Example sentences
  • During the war a tiny number of helicopters and autogiros were employed, sometimes actually seeing action, though success was sporadic at best.
  • Gyrocopters, also known as autogyros, are a type of aircraft that look like a cross between an aeroplane and a helicopter.
  • With that he escorted Jones to a hotel, insisted on paying the bill and when he drove his cousin back to the airfield next morning the autogyro had been filled with fuel - and given a polish.

Origin

1920s: from Spanish, from auto- 'self' + giro 'gyration'.

Definition of autogiro in:

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