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|Noun||1.||Actinozoa - a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed|
Cnidaria, Coelenterata, phylum Cnidaria, phylum Coelenterata - hydras; polyps; jellyfishes; sea anemones; corals
actinozoan, anthozoan - sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
class - (biology) a taxonomic group containing one or more orders
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