an aircraft with rotors that can be switched from spinning horizontally, usually during takeoffs and landings, to spinning vertically, as during regular flight
: sometimes written ˈtiltˌrotor
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.