gastrulation definition

  • noun:
    • The process of creating a gastrula.
    • The phase of embryo development where a gastrula is created from blastula by the inward migration of cells
    • the entire process of invagination, in embryonic development, wherein a gastrula is formed.
    • In embryology, the forming of a gastrula; the procedure wherein a germ is converted from a morula or a blastula into a gastrula.
    • the method for which a gastrula develops from a blastula because of the inward migration of cells

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