coelenterate
English Thesaurus
1. radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms (noun.animal)
| hypernym | : | invertebrate, |
| definition | : | any animal lacking a backbone or notochord; the term is not used as a scientific classification (noun.animal) |
| hyponym | : | polyp, |
| definition | : | 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 (noun.animal) |
| hyponym | : | medusa, medusan, medusoid, |
| definition | : | 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 (noun.animal) |
| hyponym | : | jellyfish, |
| definition | : | any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans (noun.animal) |
| hyponym | : | scyphozoan, |
| definition | : | any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycle (noun.animal) |
| hyponym | : | hydroid, hydrozoan, |
| definition | : | colonial coelenterates having the polyp phase dominant (noun.animal) |
| hyponym | : | actinozoan, anthozoan, |
| definition | : | sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed (noun.animal) |
| part holonym | : | coelenteron, |
| definition | : | the saclike body cavity of a coelenterate (noun.animal) |
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