ALL meanings of xanthine
xan·thine
X x - noun xanthine a crystalline, nitrogenous compound, C 5 H 4 N 4 O 2 , related to uric acid, occurring in urine, blood, and certain animal and vegetable tissues. 1
- noun xanthine any derivative of this compound. 1
- noun xanthine A crystalline compound that is found in blood and urine and is an intermediate in the metabolic breakdown of nucleic acids to uric acid. 1
- noun xanthine (chemistry) Any of a group of alkaloids that include caffeine, theophylline, and theobromine as well as the parent compound, a precursor of uric acid found in many organs of the body. 0
- noun xanthine a crystalline compound related in structure to uric acid and found in urine, blood, certain plants, and certain animal tissues. Formula: C5H4N4O2 0
- noun xanthine any substituted derivative of xanthine, esp one of the three pharmacologically active methylated xanthines, caffeine, theophylline, or theobromine, which act as stimulants and diuretics 0
- noun xanthine a white, crystalline, nitrogenous compound, C5H4N4O2, resembling uric acid: it is present in blood, urine, and certain plants 0
- noun xanthine any of various derivatives of this compound 0