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单词 原肾
释义 〔pronephros〕A kidneylike organ, being either part of the most anterior pair of three pairs of organs in a vertebrate embryo, disappearing early in the embryonic development of higher vertebrates, but functioning as a kidney in some simple vertebrates, such as the lamprey.前肾,原肾:一肾状器官,是脊椎动物胚胎中三对器官最前面一对的一部分,在高级脊椎动物的早期发育时消失,但在一些初级脊椎动物中作为肾脏,如八目鳗〔nephridium〕The excretory organ of a vertebrate embryo from which the kidney develops.原肾:脊椎动物胚胎的排泄器官,肾由此发展而来
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