In various invertebrates: a part of the body situated in front of or anterior to the mouth; esp. (in annelid worms) the lobe or region anterior to…
| 单词 | θ31421 |
| 释义 | the world > animals > invertebrates > bodies or parts > [noun] > pre-oral region (1) prostomium1870 In various invertebrates: a part of the body situated in front of or anterior to the mouth; esp. (in annelid worms) the lobe or region anterior to… |
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英语词典包含1132095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。