Learn how to say Coelenterates correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word coelenterate:
any invertebrate of the phylum Cnidaria (formerly Coelenterata), having a saclike body with a single opening (mouth), which occurs in polyp and medusa forms. Coelenterates include the hydra, jellyfishes, sea anemones, and corals
(loosely) any invertebrate of the phyla Cnidaria or Ctenophora
of or relating to coelenterates