The Collaborative International Dictionary of English

Hydroida

Hydroidea Hy*droi"de*a, n. pl. [NL. See {Hydra}, and {-oid}.] (Zo["o]l.) An extensive order of Hydrozoa or Acaleph[ae]. [Written also {Hydroida}.] [1913 Webster]

Note: This order includes the hydras and the free-swimming hydromedus[ae], together with a great variety of marine attached hydroids, many of which grow up into large, elegantly branched forms, consisting of a vast number of zooids (hydranths, gonophores, etc.), united by hollow stems. All the zooids of a colony are produced from one primary zooid, by successive buddings. The Siphonophora have also been included in this order by some writers. See {Gymnoblastea}, {Hydromedusa}, {Gonosome}, {Gonotheca}. [1913 Webster]


  • Hydroida — is a obsolete cidaria order which uited such aimals as hydras, hydromedusae, ad may marie attached hydroids. However, the group is paraphyletic ad ot composed from close relatives. But for the largest part, this group makes… (Wikipedia)
  • Hydroida — (Redirigido desde Hidroide) Saltar a avegació, búsqueda ? Hydroida Athomedusae de Erst Haeckel Kustforme der Natur, publicado e 1904 Clasificació cietífica Reio: Aimalia Filo: Cidaria Clase: Hydrozoa Orde: Hydroida… (Wikipedia Español)
  • Hydroida — … (Википедия)
  • Hydrozoa — Taxobox ame Hydrozoa image_width 240px image_captio Closeup of a hydrozoa coloy regum Aimalia subregum Eumetazoa phylum Cidaria subphylum Medusozoa classis Hydrozoa classis_authority Owe, 1843 subdivisio_raks Subclasses subdivisio… (Wikipedia)
  • Hydroid — may refer to:Marie BiologyColoial, plat-like aimals closely related to jellyfish, with stigig cellsay member of the ivertebrate order Hydroida (class Hydrozoa, phylum Cidaria). Hydroids have three basic life-cycle stages: (1) a…
  • Hydra oligactis — Taxobox ame "Hydra oligactis" image_width 250px image_captio regum Aimalia phylum Cidaria classis Hydrozoa ordo Hydroida familia Hydridae geus "Hydra" species "H. oligactis" biomial "Hydra oligactis" biomial_authority Pallas, 1766"Hydra…
  • Hydra viridissima — Taxobox ame "Hydra viridissima" image_width 250px image_captio regum Aimalia phylum Cidaria classis Hydrozoa ordo Hydroida familia Hydridae geus "Hydra" species "H. viridissima" biomial "Hydra viridissima" biomial_authority Pallas,…
  • Hydra viridis — Taxobox ame "Hydra viridis" image_width 250px image_captio regum Aimalia phylum Cidaria classis Hydrozoa ordo Hydroida familia Hydridae geus "Hydra" species "H. viridis" biomial "Hydra viridis" biomial_authority Liaeus, 1767 "Hydra…
  • Hydroids — Taxobox ame Hydroida image_width 220px regum Aimalia subregum Metazoa phylum Cidaria classis Hydrozoa ordo Hydroida ordo_authority ZOOLOGY: A hydroid i zoology is a aimal that superficially appears plat-like. Hydroids are however…