elasmosaurus (n.)youdaoicibaDictYouDict[elasmosaurus 词源字典]
giant sea reptile from the Mezozoic, 1868, from Modern Latin (coined by E.D. Cope), from comb. form of Greek elasmos "metal plate" (from elan "to strike;" see elastic) + -saurus. So called from the caudal laminae and the great plate-bones.[elasmosaurus etymology, elasmosaurus origin, 英语词源]