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Meaning of autogiro

au•to•gi•ro

Pronunciation: (ô"tu-jī'rō), [key]
— pl. -ros.
  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the fuselage that provides lift for the machine, with forward propulsion being provided by a conventional propeller: superseded in most applications by the helicopter.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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