noun ·Rare ·Advanced level

Definitions

Noun

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

Synonyms

All synonyms

cnidarian

Etymology

From scientific New Latin Coelenterata.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.