| 单词 | therapsid |
| 释义 | therapsid /thə-rapˈsid/nounA member of the Therapˈsida, an order of extinct reptiles of the Permian and Triassic periods, showing many mammal-like features and thought to be the ancestors of the mammals (also adjective) ORIGIN: New L Therapsida, from Gr thēr wild beast, and apsis arch or vault, so called because of the temporal arch of the skull |
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