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 (är-kĕn′tə-rŏn′, -tər-ən)
The central cavity of the gastrula, which ultimately becomes the intestinal or digestive cavity.

ar′chen·ter′ic (är′kĕn-tĕr′ĭk) adj.


(Anatomy) the cavity within an embryo at the gastrula stage of development that eventually becomes the digestive cavity
[C19: from Greek arkhē beginning + enteron intestine]
archenteric adj


(ɑrˈkɛn təˌrɒn)

pl. -ter•a (-tər ə)
the primitive enteron or digestive cavity of a gastrula.
arch`en•ter′ic (-ˈtɛr ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.archenteron - central cavity of the gastrulaarchenteron - central cavity of the gastrula; becomes the intestinal or digestive cavity
gastrula - double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
blastopore - the opening into the archenteron
bodily cavity, cavum, cavity - (anatomy) a natural hollow or sinus within the body
References in periodicals archive ?
At 24 h postfertilization, at which time control embryos had formed gastrulae, the embryos treated with acidified seawater alone were morphologically abnormal, many with distorted shapes or abnormal archenterons, and some embryos had multiple archenterons (Fig.