Also found in: Thesaurus, Encyclopedia, Wikipedia.


A machine shaped like an aircraft that is held aloft and propelled by wing movements.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Aeronautics) a heavier-than-air craft sustained in and propelled through the air by flapping wings. Also called: orthopter
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌɔr nəˈθɒp tər)

a heavier-than-air craft designed to be propelled through the air by flapping wings.
[< French ornithoptère (1908) =ornitho- ornitho- + -ptère < Greek -pteros -pterous]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ornithopter - heavier-than-air craft that is propelled by the flapping of wingsornithopter - heavier-than-air craft that is propelled by the flapping of wings
heavier-than-air craft - a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The exhibition included a one-of-a kind, full motion, virtual reality experience, Fly, which enabled visitors to become a time-travelling pilot, from the earliest imaginings of Leonard da Vinci and his ornithopter, to the Wright Brothers' success on Kitty Hawk, to that first inaugural passenger flight to Paris, through Concorde, the brand new A350 and the imagined flight of future.
Summerhall is also where you'll see Survive In Space, an audience-led show about the disasters that happen in space, and The Ornithopter, a moving production following an inventor who dreams of touching the sun.
The Ornithopter blends puppetry, object manipulation and physical theatre to introduce an inventor who dreams of touching the sun.
Keennon, "Microbat: a palm-sized electrically powered ornithopter," in Proceedings of NASA/JPL Workshop on Biomorphic Robotics, pp.
But before the jihadists can be absolutely ID'd--by a futuristic ornithopter the size and shape of a hummingbird--they drive to another location in a slum controlled by al-Shabaab, the terrorists behind the Westgate Mall massacre of 2013.
Caption: MIT's model drones: Some detect oncoming obstacles using motion trackers, then "knife" sideways to avoid them (top); the Phoenix ornithopter (lower left) flaps like a bird carrying 400 grams of onboard computer plus sensors; some drones (lower right) can dodge objects such as goalposts.
A few difficult words--Renaissance, millennium, ornithopter, and the scientific types of clouds--create poor readability for lower elementary students, but as a teaching tool with an adult facilitator, the book is excellent.
However, a distinction should be made when focusing on this class of vehicles between bird-like vehicles called Ornithopter and Insect-like vehicles called Entemopters [1].
The device, a new form of ornithopter has wings that push downwards instead of flapping, mimicking the puling movements of a swimming jellyfish.
The result is an ''ornithopter,'' or flying machine that hovers with great stability, without the need for constant, energy-draining correction.
Dietl and Garcia [16] presented a purely analytical coupled vehicle dynamics/aerodynamics model for longitudinal flight in an ornithopter to analyze flight dynamics patterns for predetermined wing kinematics.