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The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under Invagination.

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digestivedefinitioncavitydefinitiongastruladefinitionembryodefinitionenterondefinitioninvaginationdefinitionprimitivedefinitionsacdefinitionseedefinitionundifferentiateddefinitionbecomesdefinitioncentraldefinitionintestinaldefinitionarchegoniafamilyarchegonialfamilyarchegoniatefamilyarchegoniumfamilyarchegonyfamilyarcheifamilyarchelogyfamilyarchencephalafamilyarchenemyfamilyarchentericfamilyarcheobacteriafamilyarcheologicfamilyarcheologicalfamilyarcheological remainsfamilyarcheological sitefamily

Definitions

  1. n. The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under Invagination.
  2. n. central cavity of the gastrula; becomes the intestinal or digestive cavity
  3. The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under Invagination.
  4. The primitive enteron or undifferentiated digestive sac of agastrula or other embryo. See Illust. under Invagination.
  5. n central cavity of the gastrula; becomes the intestinal or digestive cavity