from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An aircraft powered by a conventional propeller and supported in flight by a freewheeling, horizontal rotor that provides lift.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An aircraft in which lift is provided by unpowered rotating wings and thrust is provided by a conventional propeller.
from the GNU version of the Collaborative International Dictionary of English
- n. same as autogyro.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller
Originally a trademark.(American Heritage® Dictionary of the English Language, Fourth Edition)