| 释义 |
dimetrodon/daiˈmi:trədɒn/n. a large carnivorous quadrupedal reptile of the genus Dimetrodon, of the Permian period, with long spines on its back forming a sail-like crest 异齿龙(异齿龙属，生活在二叠纪的大型食肉性四足爬行动物，背椎处具有一个大背帆) [modern Latin from DI-1 + Greek metron ‘measure’ + odous odont- ‘tooth’ (taken in sense ‘two long teeth’)] |