[mass noun](Biochemistry)a compound that occurs in guano and fish scales, and is one of the four constituent bases of nucleic acids. A pure derivative, it is paired with cytosine in double-stranded DNA (生化)鸟嘌呤
Alternative name: 6-oxy-2-aminopurine; chem. formula: C5H5N5O 又名:2氨基6羟尿环;化学分子式:C5H5N5O