cy·to·sine /ˈsaɪtəˌsin/ 胞密定
cy·to·sine /ˈsaɪtəˌsɪn/ 名詞 胞嘧啶,2-羥基-6-氨基嘧啶
cytosine n : a base found in DNA and RNA and derived from pyrimidine; pairs with guanine [syn: C]