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[sēlen′təron] pl. coelentera
Etymology: Gk, koilos, hollow, enteron, intestine
the digestive cavity of animals in the phylum Cnidaria, such as the hydra and the jellyfish. See also archenteron.
coelenteronthe digestive cavity in COELENTERATES which has only one opening, the mouth.
the digestive cavity of coelenterates. Has a single opening into which all food is taken and through which all waste products are ejected.