autogiro Hear it!

autogiro definition

auto·giro (ôt′ə jī′rō)

noun pl. autogiros -·ros

an aircraft that moves forward by means of a propeller and is supported in the air mainly by means of a large rotor mounted horizontally above the fuselage and turned by air pressure rather than motor power: largely superseded by the helicopter

Etymology: Sp, orig. a trademark, Autogiro < auto-, auto- + Gr gyros, a circle: see gyrate

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.