英语词汇“vitelline membrane”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	vitelline membrane
释义	vitelline membrane noun : a membrane enclosing the egg proper and corresponding to the cell wall of an ordinary cell; especially : a membrane separated from the surface of the egg in many invertebrates immediately the egg is fertilized, thus preventing other spermatozoa from entering
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