xanthine

(redirected from xanthine calculi)
Also found in: Thesaurus, Medical, Encyclopedia.

xan·thine

 (zăn′thēn′, -thĭn)
n.
1. A yellowish-white, crystalline purine base, C5H4N4O2, that is a precursor of uric acid and is found in blood, urine, muscle tissue, and certain plants.
2. Any of several derivatives of this compound.

xanthine

(ˈzænθiːn; -θaɪn)
n
1. (Elements & Compounds) a crystalline compound related in structure to uric acid and found in urine, blood, certain plants, and certain animal tissues. Formula: C5H4N4O2
2. (Elements & Compounds) any substituted derivative of xanthine, esp one of the three pharmacologically active methylated xanthines, caffeine, theophylline, or theobromine, which act as stimulants and diuretics

xan•thine

(ˈzæn θin, -θɪn)

n.
1. a crystalline, nitrogenous compound, C5H4N4O2, related to uric acid, occurring in urine, blood, and certain animal and vegetable tissues.
2. any derivative of this compound.
[1855–60; < French; see xantho-, -ine2]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.xanthine - crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine
organic compound - any compound of carbon and another element or a radical
Translations
xantin
Xanthin
xanthine

xan·thine

n. xantina, grupo de substancias tales como la cafeína estimulantes del sistema nervioso central y del corazón.