Sporosac
Sporosac Spo"ro*sac (sp[=o]"r[-o]*s[a^]k), n. [Spore + sac.] (Zo["o]l.) (a) A hydrozoan reproductive zooid or gonophore which does not become medusoid in form or structure. See Illust. under {Athecata}. (b) An early or simple larval stage of trematode worms and some other invertebrates, which is capable of reproducing other germs by asexual generation; a nurse; a redia. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Sporosac — (Gonophore), s. Hydromedusen …   Meyers Großes Konversations-Lexikon

  • sporosac — n. [Gr. spora, seed; sakkos, bag] (CNIDARIA: Hydrozoa) In Siphonophora, gonophores held in place and not released into the water during larval development …   Dictionary of invertebrate zoology

  • sporosac — noun a) A hydrozoan reproductive zooid or simple form of gonophore which does not become medusoid in form or structure b) An early or simple larval stage of trematode worms and some other invertebrates, which is capable of reproducing other s by …   Wiktionary

  • sporosac — spo·ro·sac …   English syllables

  • sporosac — ˌsak noun Etymology: spor + sac 1. : a simple degenerate gonophore of some hydroids that is often little more than a gonad and never medusoid 2. a. : sporocyst b. : redia …   Useful english dictionary

  • Leptomedusae — Taxobox name = Thecate hydroids image width = 230px image caption = Crystal Jelly ( Aequorea victoria , Conica: Aequoreidae) with the parasitic amphipod Hyperia medusarum Photo by Sierra Blakely. regnum = Animalia subregnum = Eumetazoa phylum =… …   Wikipedia

  • Plumularioidea — Taxobox name = Plumularioidea image width = 240px image caption = Aglaophenia species (Aglaopheniidae) regnum = Animalia subregnum = Eumetazoa phylum = Cnidaria subphylum = Medusozoa classis = Hydrozoa subclassis = Leptolinae ordo = Leptomedusae… …   Wikipedia

  • gonophore — n. [Gr. gone, that which produces seed; phoreus, bearer] (CNIDARIA: Hydrozoa) In Hydroida, a structure that produces gametes and is a sporosac, medusa or any intermediate stage …   Dictionary of invertebrate zoology

  • HYDROZOAIRES — Les Hydrozoaires (Thomas Huxley, 1858) appartiennent à l’embranchement des Cnidaires venant, dans la classification du règne animal, après celui des Spongiaires qui groupe les plus primitifs des animaux pluricellulaires (Métazoaires). Les… …   Encyclopédie Universelle

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