Cnidaria

Cnidaria
Cni·dar·ia nī-'dar-ē-ə n pl a phylum of more or less radially symmetrical invertebrate animals that lack a true body cavity, possess tentacles studded with nematocysts, and include the hydroids, jellyfishes, sea anemones, and corals

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Cni·da·ria (ni-darґe-ə) [Gr. knidē a nettle] a phylum of marine invertebrates that includes three classes, Anthozoa, Hydrozoa, and Scyphozoa. It includes jellyfish, sea anemones, Portuguese men-of-war, and other animals that were formerly assigned to the phylum Coelenterata. Most members of the phylum have a radially symmetrical body with tentacles around the mouth. Numerous jellyfish and a few other species are venomous, some even deadly.

Medical dictionary. 2011.

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  • Cnidaria — Cni*da ri*a (n[i^]*d[=a] r[i^]*[.a]), n. pl. [NL. See {Cnida}.] (Zo[ o]l.) A comprehensive group equivalent to the true C[oe]lenterata, i. e., exclusive of the sponges. They are so named from presence of stinging cells (cnidae) in the tissues.… …   The Collaborative International Dictionary of English

  • Cnidarĭa — Cnidarĭa, s. Cölenteraten …   Meyers Großes Konversations-Lexikon

  • Cnidaria — Cnidarĭa, s. Nesseltiere …   Kleines Konversations-Lexikon

  • Cnidaria — Filo de animales marinos que incluye medusas, anémonas marinas, hidroides y corales. Antes llamado Coelenterata. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 …   Diccionario médico

  • Cnidaria —   [zu griechisch knídē »Nessel«], die Nesseltiere.   …   Universal-Lexikon

  • Cnidaria — Cnidaria, Nesseltiere, über 9000 Arten umfassender Tierstamm; mit den ⇒ Ctenophora wegen ihres radiärsymmetrischen Körperbaus zu den ⇒ Coelenterata zusammengefasst; zumeist meer , einige Arten auch süßwasserbewohnend. Ihr Körperbau entspricht… …   Deutsch wörterbuch der biologie

  • Cnidaria — phylum of stinging invertebrates, from Mod.L. cnida, from Gk. knide nettle, from stem of knizein to scratch scrape …   Etymology dictionary

  • Cnidaria — Temporal range: 580–0 Ma …   Wikipedia

  • Cnidaria — Nesseltiere Seeanemone (Actiniaria) und Lederkoralle (Alcyonacea) Systematik Domäne …   Deutsch Wikipedia

  • Cnidaria — (Cnidaires) …   Wikipédia en Français

  • Cnidaria —   Cnidaria Anémona de mar ( …   Wikipedia Español

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