| 单词 | therapsid |
| 释义 | Word Frequency therapsid(θəˈræpsɪd) noun any extinct reptile of the order Therapsida, of Permian to Triassic times: considered to be the ancestors of mammals Word origin C20: from New Latin Therapsida, from Greek thēr beast + Latin apsis arch |
| 随便看 |
英语词典包含233703条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。