胎毛，读音tāi máo，汉语词语，意思为胎发。亦指初生哺乳动物身上的毛。
misc. lanugo hair ; foetal hair
并不是为了迷信说是宝宝留了胎毛好养。
Superstition is not to say that baby left a lanugo easy to keep.
于是妈妈就把胎毛也剪掉了，不过妈妈没把头发丢掉。
So she put lanugo also cut off, but her mother did not lose her hair.
她还长出了一层细绒毛，补称做胎毛，通常会在36周的时候脱落并被毫毛替代。
She's also developing a thin layer of very fine hair called lanugo which is normally shed and replaced with vellus hair by week 36.
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