胞嘧啶 Traditional form: 胞嘧啶 Pinyin (reading): bāomìdìng Definitions: cytosine nucleotide (C, pairs with guanine G 鳥嘌呤/鸟嘌呤 in DNA and RNA) Characters: 胞 - womb, placenta, fetal membrane 嘧 - in chemistry, -mi as in pyramidine 啶 - in chemistry, -dine Traditional characters: 胞 - womb, placenta, fetal membrane 嘧 - in chemistry, -mi as in pyramidine 啶 - in chemistry, -dine