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the fuselage that provides lift for the machine, with forward propulsion being provided by a conventional propeller: superseded in most applications by the helicopter.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use autogiro in a sentence
The second was a telegram from the Pitcairn autogiro Company.
"I am going to buy an autogiro," she announced, with decision.
In silence they buried the treasure and returned to the autogiro.
Or rather, the top of the autogiro, for it was not wholly visible.
In the dawning light he saw the autogiro, lying half on its side.
British Dictionary definitions for autogiro
a self-propelled aircraft supported in flight mainly by unpowered rotating horizontal blades: Also called: gyroplane Compare helicopter
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