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(Aeronautics) another name for ornithopter
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
da Vinci’s exploratory design for a flying machine moved by flapping wings.See also: Aviation
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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|Noun||1.||orthopter - 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
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