鸟嘌呤 Traditional form: 鳥嘌呤 Pinyin (reading): niǎopiàolìng Definitions: guanine nucleotide (G, pairs with cytosine C 胞嘧啶 in DNA and RNA) Characters: 鸟 - bird 嘌 - fast, speedy 呤 - purine Traditional characters: 鳥 - bird 嘌 - fast, speedy 呤 - purine