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Definitions of gastrula
  1. noun
    double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
Definition that contains gastrula
  • germ layer (embryology) any of the 3 layers of cells differentiated in embryos following gastrulation
  • archenteron central cavity of the gastrula; becomes the intestinal or digestive cavity
  • gastrulation the process in which a gastrula develops from a blastula by the inward migration of cells
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