ICM has various meanings in the Scientific & Educational category. Discover the full forms, definitions, and usage contexts of ICM in Scientific & Educational.
In early embryogenesis of most eutherian mammals, the inner cell mass is the mass of cells inside the primordial embryo that will eventually give rise to the definitive structures of the fetus. This structure forms in the earliest steps of development, before implantation into the endometrium of the uterus has occurred.
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