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Related to anthozoan: class Anthozoa


Any of numerous cnidarians of the class Anthozoa, including the corals and sea anemones, that grow singly or in colonies and live as polyps, without a medusa stage.

an′tho·zo′an, an′tho·zo′ic (-zō′ĭk) adj.


(Animals) any of the solitary or colonial sessile marine coelenterates of the class Anthozoa, including the corals, sea anemones, and sea pens, in which the body is in the form of a polyp
(Zoology) Also: actinozoan of or relating to the class Anthozoa


(ˌæn θəˈzoʊ ən)

1. any sessile solitary or colonial marine polyp of the class Anthozoa, lacking a medusa stage, and including corals, sea anemones, and sea pens.
2. Also, an`tho•zo′ic. belonging or pertaining to the anthozoans.
[1885–90; < New Latin Anthozo(a) (see antho-, -zoa) + -an1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.anthozoan - sessile marine coelenterates including solitary and colonial polypsanthozoan - sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
cnidarian, coelenterate - radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
Actinozoa, Anthozoa, class Actinozoa, class Anthozoa - a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed
sea anemone, anemone - marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton
sea pen - fleshy featherlike warm-water colonies
coral - marine colonial polyp characterized by a calcareous skeleton; masses in a variety of shapes often forming reefs
References in periodicals archive ?
They include maize for basic and applied research in plant biology, the Dioscorea true yams as a biological and evolutionary link between eudicots and grasses, the starlet sea anemone Nematostella vectenis as an anthozoan model organism for studying comparative genomics and functional evolutionary biology, ants as models for social complexity, the parasitoid wasp Nasonia for haploid male genetics, and the rabbit Oryctolagus cuniculus for mammalian reproduction and early embryology.
The epiplanktic anthozoan, Kolihaia eremita Prantl, 1946 (Cnidaria), from the Silurian of the Prague Basin (Bohemia).
Free amino acids exhibit anthozoan "host factor" activity: they induce the release of photosynthate from symbiotic dino-fiagellates in vitro.
Nematostella vectensis is a small, burrowing anthozoan found in estuaries along both coasts of North America and the south coast of England (Hand and Uhlinger, 1994) that can be readily maintained and manipulated in the laboratory (Hand and Uhlinger, 1992; Darling et al.
The complement of cnidae distinguishes the anthozoan subclasses Hexacorallia and Octocorallia (reviewed in Daly et al.
Furthermore, the availability of sequence resources for diverse species of symbiotic anthozoan species opens new comparative possibilities for the study of cnidarian-algal symbiosis.
Among anthozoan larvae, protein kinase C activation mediates metamorphosis in several Red Sea corals (Henning et al.
To illustrate this general point, studies of hydroid and anthozoan gastrovascular systems are briefly summarized.
2006; Tucker and Chiquet-Ehrismann, 2009), we examined the genome of the estuarine anthozoan Nematostella vectensis Stephenson (1935) for genes predicted to encode EGF-like and FN3 domains.