11 letters · 16 points in Scrabble
noun heavier-than-air craft that is propelled by the flapping of wings
originFrom French ornithoptère, from Ancient Greek ὄρνιθ- (órnith-) + πτερόν (pterón, “wing”), equivalent to ornitho- + -pter.
Etymology from Wiktionary, CC BY-SA 3.0