Definition of "gyroplane" []

• An aircraft, such as a helicopter or autogyro, equipped with wings that rotate about an approximately vertical axis. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Since then, Wilford had built a gyroplane, a machine similar to an Autogiro, based on a design he had bought during a visit to Germany in the 1920s."
• "Burke Wilford, the gyroplane developer who had organized the 1938 Rotating Wing Aircraft Meeting, was now committed to the quest for the convertiplane himself."
• "Mr Morse died at Long Marston airfield near Stratford upon Avon on Monday following a collision with a gyroplane."