Definition of "ornithopter" []

• A machine shaped like an aircraft that is held aloft and propelled by wing movements. (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.

• "An ornithopter is an aircraft that gets its forward propulsion from the flapping of wings (the ORNITH – in ornithopter comes from the ltain for “bird” – putting “ornith” on a prefix makes it “bird-like”) an ornithopter is a heavier-than-air aircraft that is propelled by the flapping of wings."
• "    The ornithopter was the original one they had rebuilt years ago."
• "The ornithopter was the original one they had rebuilt years ago."