[xan.thine] n [ISV] (1857): a feebly basic compound that occurs esp. in animal or plant tissue, is derived from guanine and hypoxanthine, and yields uric acid on oxidation; also: any of various derivatives of this
XANTHINE
Meaning of XANTHINE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012