Origin of ornithopter
"ornithopter." YourDictionary, n.d. Web. 18 January 2019. <https://www.yourdictionary.com/ornithopter>.
ornithopter. (n.d.). Retrieved January 18th, 2019, from https://www.yourdictionary.com/ornithopter
From ornitho- +"Ž -pter.
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