coe•len•ter•ate
We found 6 definitions of coelenterate from 5 different sources.
NounPlural: coelenterates |
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coelenterate - radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms | ||
cnidarian | ||
invertebrate any animal lacking a backbone or notochord; the term is not used as a scientific classification | ||
cnidaria, coelenterata, phylum cnidaria, phylum coelenterata hydras; polyps; jellyfishes; sea anemones; corals | ||
coelenteron the saclike body cavity of a coelenterate | ||
polyp one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth; "in some species of coelenterate, polyps are a phase in the life cycle that alternates with a medusoid phase" | ||
medusan, medusoid, medusa one of two forms that coelenterates take: it is the free-swimming sexual phase in the life cycle of a coelenterate; in this phase it has a gelatinous umbrella-shaped body and tentacles | ||
jellyfish any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans | ||
scyphozoan any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycle | ||
hydroid, hydrozoan colonial coelenterates having the polyp phase dominant |