Orthopter definitions

Orthopter

1) Ornithopter
Found on https://www.crosswordclues.com/clue/orthopter

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orthopter

ornithopter; flying machine with moving wings
Found on http://phrontistery.info/o.html

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orthopter

[n] - heavier-than-air craft that is propelled by the flapping of wings
Found on http://www.webdictionary.co.uk/definition.php?query=orthopter

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orthopter

ornithopter noun heavier-than-air craft that is propelled by the flapping of wings
Found on https://www.encyclo.co.uk/local/20974

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