protomammal
noun
(An informal name for) a hypothetical primitive mammal or a known evolutionary ancestor of the mammals.
Origin
1930s.
| 单词 | protomammal |
| 释义 | protomammalnoun (An informal name for) a hypothetical primitive mammal or a known evolutionary ancestor of the mammals. Origin |
| 随便看 |
英语词典包含243303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。