perienteron definition

  • noun:
    • The primitive perivisceral cavity.
    • The primitive perivisceral hole persisting as a modified blastocœle after a blastosphere has withstood gastrulation; the blastocœle of a gasturla, or even the space between your endoderm and ectoderm, as distinguished from the hole of this archenteron inclosed within the endoderm.
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