[pu.rine] n [G Purin, fr. L purus pure + NL uricus uric (fr. E uric) + G -in
[2]-ine] (1898) 1: a crystalline base that is the parent of compounds of the uric-acid group
2: a derivative of purine; esp: a base (as adenine or guanine) that is a constituent of DNA or RNA