archenteron definition

  • noun:
    • The central cavity of gastrula, which eventually becomes the intestinal or digestive hole.
    • A primitive alimentary hole
    • The ancient enteron or undifferentiated digestion sac of a gastrula or other embryo. See Illust. under invagination.
    • The enteron (which see) with its initial or primitive undifferentiated state: opposed to metenteron.
    • central cavity associated with gastrula; becomes the abdominal or digestion hole
    • The main cavity for the gastrula, which fundamentally becomes the abdominal or digestion hole.
    • A primitive alimentary hole
    • The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under invagination.
    • The enteron (which see) with its initial or ancient undifferentiated state: in opposition to metenteron.
    • main cavity of gastrula; becomes the abdominal or digestion hole

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