/awr"neuh theen'/, n. Biochem.
an amino acid, H2N(CH2)3CH(NH2)COOH, obtained by the hydrolysis of arginine and occurring as an intermediate compound in the urea cycle of mammals.
[1880-85; ornith(uric acid), secreted by birds + -INE2]

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Universalium. 2010.

Look at other dictionaries:

  • Ornithine — Formule topologique de l ornithine. Général No CAS …   Wikipédia en Français

  • ornithine — ornithine. См. орнитин. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • ornithine — ● ornithine nom féminin Acide aminé basique, glycoformateur et transaminable, jouant un rôle dans le cycle de l uréogenèse. (Le dérivé guanidinique est l arginine.) …   Encyclopédie Universelle

  • ornithine — [ôr′nə thēn΄, ôr′nəthin] n. [< Gr ornis, bird (see ORNITHO ) + INE3] a nonessential amino acid, NH2 (CH2) 3CH(NH2)COOH, found in animals as a product of urea formation from proteins and in the excrement of birds …   English World dictionary

  • Ornithine — L Ornithine IUPAC name L Ornithine …   Wikipedia

  • ornithine — noun Etymology: International Scientific Vocabulary ornithuric acid (a compound of which ornithine is a component, found in the urine of birds) + 2 ine Date: 1881 a crystalline amino acid C5H12N2O2 that functions especially in urea production as… …   New Collegiate Dictionary

  • ornithine — ornitinas statusas T sritis chemija formulė H₂N(CH₂)₃CH(NH₂)COOH santrumpa( os) Orn atitikmenys: angl. ornithine rus. орнитин ryšiai: sinonimas – 2,5 diaminopentano rūgštis …   Chemijos terminų aiškinamasis žodynas

  • ornithine — noun an amino acid that does not occur in proteins but is important in the formation of urea • Hypernyms: ↑amino acid, ↑aminoalkanoic acid * * * ornithine Chem. (ˈɔːnɪθaɪn) [f. Gr. ὀρνῑθ bird + ine5.] A base, C5H12N2O2, which enters into the… …   Useful english dictionary

  • ornithine — noun An amino acid, 2,5 diaminopentanoic acid, that is not present in protein, but is an intermediate in the biosynthesis of urea …   Wiktionary

  • ornithine — 2,5 Diaminovaleric acid; the l isomer is the amino acid formed when l arginine is hydrolyzed by arginase; not a constituent of proteins, but an important intermediate in the urea cycle; elevated levels seen in certain defects of the urea cycle. o …   Medical dictionary

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