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archenteron 原腸 原腸 archenteron n 1: central cavity of the gastrula; becomes the intestinal or digestive cavity Archenteron \Arch`en"ter*on\, n. [Pref. arch- Gr. ?
intestine.] (Biol.) The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under {Invagination}. [1913 Webster]
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