xanthine

xanthine
(gzan-ti-n') s. f.
Terme de chimie. Matière colorante de la garance.
   Xanthine azotée, oxyde xanthique, principe découvert dans quelques calculs urinaires de l'homme, et qui paraît exister aussi en grande quantité dans le guano.
   Du grec, jaune.

Dictionnaire de la Langue Française d'Émile Littré. . 1872-1877.

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  • Xanthine — Général N …   Wikipédia en Français

  • xanthine — [ gzɑ̃tin ] n. f. • 1890; du gr. xanthos « jaune » et ine ♦ Biochim. Base organique dérivée de la purine et qui donne sa couleur jaune à l urine. ● xanthine nom féminin Base purique entrant dans la composition des nucléotides et des acides… …   Encyclopédie Universelle

  • Xanthine — Xan thine, n. Also Xanthin Xan thin . [Gr. xanqo s yellow.] (Physiol. Chem.) A type of purine obtainable as a white microcrystalline powder, {C5H4O2N4}, present in muscle tissue, in the liver, spleen, pancreas, and other organs, and also in urine …   The Collaborative International Dictionary of English

  • xanthine — xanthine. См. ксантин. (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.

  • xanthine — [zan′thēn΄, zan′thin] n. [Fr: see XANTHO & IN1] 1. a white, crystalline, nitrogenous compound, C5H4N4O2, resembling uric acid: it is present in blood, urine, and certain plants 2. any of various derivatives of this compound …   English World dictionary

  • Xanthine — Not to be confused with xanthene. Xanthine …   Wikipedia

  • Xanthine — A substance found in caffeine, theobromine, and theophylline and encountered in tea, coffee, and the colas. Chemically, xanthine is a purine. There is a genetic disease of xanthine metabolism, xanthinuria, due to deficiency of an enzyme, xanthine …   Medical dictionary

  • Xanthine — Strukturformel Allgemeines Name Xanthin Andere Namen 2,6 Dihydroxypurin 2,6(1H,3H) Purindion …   Deutsch Wikipedia

  • xanthine — noun Etymology: International Scientific Vocabulary Date: 1857 a feebly basic compound C5H4N4O2 that occurs especially in animal or plant tissue, is derived from guanine and hypoxanthine, and yields uric acid on oxidation; also any of various… …   New Collegiate Dictionary

  • xanthine — n. a nitrogenous breakdown product of the purines adenosine and guanine. Xanthine is an intermediate product of the breakdown of nucleic acids to uric acid …   The new mediacal dictionary

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