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单词 xanthine
释义 xanthine
 /zan"theen, -thin/, n. Biochem., Chem.
  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; < F; see XANTHO-, -INE2]
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