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blastoderm medical definition
or blas·to·der·ma
noun The layer of cells formed by the cleavage of a fertilized mammalian egg, which later divides into the three germ layers from which the embryo develops. Also called germinal membrane, germ membrane.
Related Forms:
- blastodermal, blasˌto·derˈmic, blasˌto·der·matˈic adjective
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