heavier-than-air craft that is propelled by the flapping of wings

listen to the pronunciation of heavier-than-air craft that is propelled by the flapping of wings
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Definition of heavier-than-air craft that is propelled by the flapping of wings in English English dictionary

heavier-than-air craft that is propelled by the flapping of wings
ornithopter
heavier-than-air craft that is propelled by the flapping of wings
orthopter
heavier-than-air craft that is propelled by the flapping of wings
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