What does "coelenterate" mean?

Any simple aquatic animal formerly considered to belong to the phylum Coelenterata, now divided into the cnidarians and ctenophores.

What is a synonym for "coelenterate"?

Common synonyms include: cnidarian.

Pronounced //sɪˈlɛn.tɚ.ɪt//.

/sɪˈlɛn.tɚ.ɪt/ noun

noun ·Rare ·Advanced level

Noun

1
Any simple aquatic animal formerly considered to belong to the phylum Coelenterata, now divided into the cnidarians and ctenophores. dated
2
radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms wordnet

From scientific New Latin Coelenterata.