Pneumatocyst
Pneumatocyst Pneu*mat"o*cyst, n. [Pneumato- + cyst.] (Zo["o]l.) A cyst or sac of a siphonophore, containing air, and serving as a float, as in Physalia. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Pneumatocyst — In phytology, a pneumatocyst is a large float containing gas found in brown algae. An organism may have more than one. They provide buoyancy to lift the blades toward the surface, allowing them to receive more sunlight for photosynthesis.The… …   Wikipedia

  • pneumatocyst — /noo mat euh sist, nyoo , nooh meuh teuh , nyooh /, n. Biol. 1. the cavity of a pneumatophore. 2. pneumatophore. [1855 60; PNEUMATO + CYST] * * * …   Universalium

  • pneumatocyst — pneu·ma·to·cyst …   English syllables

  • pneumatocyst — pneu•mat•o•cyst [[t]nʊˈmæt ə sɪst, nyʊ [/t]] n. bot pneumatophore • Etymology: 1855–1860 …   From formal English to slang

  • pneumatocyst — ˌsist noun Etymology: pneumat + cyst 1. : the cavity of a pneumatophore 2. : pneumatophore 1 …   Useful english dictionary

  • Lessoniaceae — Taxobox name = Lessoniaceae image width = 200px image caption = Macrocystis pyrifera domain = Eukaryota regnum = Chromalveolata phylum = Heterokontophyta classis = Phaeophyceae ordo = Laminariales familia = LessoniaceaeLessoniaceae are a family… …   Wikipedia

  • Brown algae — Temporal range: 150–0 Ma[1][2] …   Wikipedia

  • Porpita — Por pi*ta, n. [NL., from Gr. ? brooch.] (Zo[ o]l.) A genus of bright colored Siphonophora found floating in the warmer parts of the ocean. The individuals are round and disk shaped, with a large zooid in the center of the under side, surrounded… …   The Collaborative International Dictionary of English

  • Cnidocyte — Not to be confused with Pneumatocyst. Nomarski micrograph of a Ruthenium red stained nematocyst from Aiptasia pallida, the pale anemone. The red dye stains the polyanionic venom proteins found inside the capsule of this partially discharged… …   Wikipedia

  • Kelp — Taxobox name =Kelp image width = 270px image caption = Californian kelp forest domain = Eukaryota regnum = Chromalveolata phylum = Heterokontophyta classis = Phaeophyceae ordo = Laminariales ordo authority = Migula subdivision ranks = Families… …   Wikipedia

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