英语词汇“germ layer theory”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	germ layer theory
释义	germ layer theory germ lay·er the·o·ry the concept that embryos differentiate three primary germ layers (ectoderm, mesoderm, and endoderm), each of which has the potentiality of forming different characteristic structures and organs in the developing body.
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germ layer theory