Iguanodon (n.)youdaoicibaDictYouDict[Iguanodon 词源字典]
dinosaur name, 1825, hybrid from iguana + stem of Greek odonys "tooth" (on model of mastodon). So called because the fossil teeth and bones were thought to resemble those of the lizard.[Iguanodon etymology, Iguanodon origin, 英语词源]