gas·tru·la·tion /ˌgæstrəˈleʃən/
原腸胚形成
gas·tru·la·tion /ˌgæstrəˈleʃən/ 名詞
原腸(胚)形成
Gas·tru·la·tion n. Biol. The process of invagination, in embryonic development, by which a gastrula is formed.
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gastrulation
n : the process in which a gastrula develops from a blastula by
the inward migration of cells