Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


 (sĭ-lĕn′tə-rŏn′, -tər-ən)
n. pl. coe·len·te·ra (-tər-ə)
The saclike gastrovascular cavity of a cnidarian or a ctenophore.

[New Latin : Greek koilos, hollow; see -coel + enteron.]


n, pl -tera (-tərə)
(Zoology) the simple saclike body cavity of a coelenterate


(sɪˈlɛn təˌrɒn)

n., pl. -ter•a (-tər ə)
the body cavity of a coelenterate.
[1890–95; coel- + enteron]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.coelenteron - the saclike body cavity of a coelenterate
cnidarian, coelenterate - radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
sac - a structure resembling a bag in an animal
References in periodicals archive ?
Furthermore, microscopic observations of the 2 severely bleached strains revealed large numbers of Symbiodinium cells being expelled from the coelenteron after anemones were returned to room temperature; only small numbers of Symbiodinium cells remained in host tissues at day 18, suggesting that low fluorescence values in this study were due to loss of Symbiodinium rather than reductions in chlorophyll fluorescence associated with quenching or change in chlorophyll concentration per symbiont cell (Jones, 1997).
Genetic evidence for the asexual origin of small individuals found in the coelenteron of the sea anemone Actinia bermudensis McMurrich.
9E); in the fifth (final) stage, the cell mass completes metamorphosis into a polyp with elongated peduncle, pedal disc, tentacles, epithelium, and a coelenteron (Fig.