| 词汇 | vestigial |
| 释义 | vestigial adjective uk/vesˈtɪdʒ.i.əl/ us/vesˈtɪdʒ.i.əl/ [ before noun ]残留的，残余的 being a small remaining part or amount medical specialized（尤指身体部位）发育不全的，退化的 used to describe something, especially a part of the body, that has not developed completely, or has stopped being used and has almost disappeared a vestigial organ/limb/tail 退化的器官／上肢／尾巴 |
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