noun🔗ShareCoelentéréAny simple aquatic animal formerly considered to belong to the phylum Coelenterata, now divided into the cnidarians and ctenophores."The old textbook classified jellyfish as a coelenterate, but modern science now recognizes them as cnidarians. "L'ancien manuel scolaire classait les méduses comme des coelentérés, mais la science moderne les reconnaît désormais comme des cnidaires.animalbiologyoceannatureorganismChat with AIVocabulary GamePractice Reading