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

单词	germ-layer theory
释义	germ-layer theory germ-layer theory [′jərm ‚lā·ər ‚thē·ə·rē] (embryology) The theory that three primary germ layers, ectoderm, mesoderm, and endoderm, are established in the early embryo and all organs and structures are derived from a specific germ layer.
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