mesoderm defined in 1951 yearmesoderm - mesoderm (MESOBLAST);
mesoderm - Germ-layer of triploblastic animal embryo composed, like endoderm, of cells which have moved from surface of embryo into its interior during gastrulation; developing into tissues between gut and ectoderm (muscle, blood, connective tissue, etc.). Term is usually applied to the germ-layer while it is still a demarcated region of the embryo, after gastrulation but before differentiation into the derived tissues; and all the tissues at later stages derived from the embryonic layer may be called meso-dermal. See also: Germ-layer, Ectoderm, Endoderm.
near mesoderm in Knolik
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