from The Century Dictionary.

  • noun In anatomy, same as epicœlia.
  • noun In zoology, a perivisceral cavity formed by an invagination of the ectoderm, as the atrium of an ascidian. It is also that kind of body-cavity which the vertebrates are considered to possess.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun zoology A perivisceral cavity made by an invagination of an ectoderm.
  • noun anatomy epicœlia


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