urostyle

urostyle
1) the small upturned posterior tip of the vertebral column, generally formed of a slender, pointed rod of cartilage, or fused vertebrae and associated elements (in homocercal caudal fins of Teleostomi)
2) the fan-like series of bones articulating with the last true vertebra, including preural centra, ural centra, epurals and hypurals. Counted as one vertebra in some vertebral counts, not counted in others

Dictionary of ichthyology. 2009.

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  • urostyle — [yʀostil] n. m. ÉTYM. Mil. XXe; de 2. uro , et style. ❖ ♦ Didact. (anat., zool.). Os long résultant de la fusion des vertèbres caudales, chez les Anoures. 0 Les vertèbres caudales (…) sont fusionnées en un élément unique, l Urostyle, complètement …   Encyclopédie Universelle

  • Urostyle — U ro*style, n. [2d uro + Gr. ? a pillar.] (Anat.) A styliform process forming the posterior extremity of the vertebral column in some fishes and amphibians. [1913 Webster] …   The Collaborative International Dictionary of English

  • urostyle — noun Etymology: International Scientific Vocabulary 2ur + Greek stylos pillar more at steer Date: 1875 a long unsegmented bone that represents a number of fused vertebrae and forms the posterior part of the vertebral column of frogs and toads …   New Collegiate Dictionary

  • urostyle — /yoor euh stuyl /, n. Anat. the fused vertebrae at the posterior end of the spinal column of some fishes and tailless amphibians. [1870 75; URO 2 + STYLE2] * * * …   Universalium

  • urostyle — noun A styliform process forming the posterior extremity of the vertebral column in some fishes and amphibians …   Wiktionary

  • urostyle — uro·style …   English syllables

  • urostyle — u•ro•style [[t]ˈyʊər əˌstaɪl[/t]] n. anat. the fused vertebrae at the posterior end of the spinal column of tailless amphibians • Etymology: 1870–75 …   From formal English to slang

  • urostyle — /ˈjurəstaɪl/ (say yoohruhstuyl) noun a bone formed by the fusion of all or part of the caudal vertebrae in some fish and such amphibians as frogs and toads. {uro 2 + style (def. 17) …  

  • urostyle — ˈ ̷ ̷ ̷ ̷ˌstīl noun ( s) Etymology: International Scientific Vocabulary ur (II) + style 1. : a long rodlike unsegmented bone representing a number of fused vertebrae that forms the posterior part of the vertebral column of frogs and toads 2 …   Useful english dictionary

  • Triadobatrachus — Triadobatrachus …   Wikipédia en Français

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