英语词汇“mammary ridge”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	mammary ridge
释义	mammary ridge noun : either of a pair of longitudinal ectodermal thickenings in the mammalian embryo that extend from the base of the anterior to the posterior limb buds and are the source of the mammary glands — called also milk line
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