trophectoderm


troph·ec·to·derm

noun \ˌtrōf-ˈek-tə-ˌdərm\

Definition of TROPHECTODERM

: trophoblast; especially : the outer layer of the mammalian blastocyst after differentiation of the ectoderm, mesoderm, and endoderm when the outer layer is continuous with the ectoderm of the embryo

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