Definisjon av phylum Cnidaria

Vi fant 1 definisjoner av phylum Cnidariaengelsk.

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WordNet WordNet by Princeton University

Noun

phylum Cnidaria - hydras; polyps; jellyfishes; sea anemones; corals
Cnidaria, Coelenterata, phylum Coelenterata
phylum (biology) the major taxonomic group of animals and plants; contains classes
metazoa, subkingdom metazoa multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system
cnidarian, coelenterate radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
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
class scyphozoa, scyphozoa coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes
jellyfish any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans
class hydrozoa, hydrozoa coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes
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