| 单词 | 嘧啶碱基 |
| 释义 | 〔cytosine〕A pyrimidine base, C4H 5N 3O, that is an essential constituent of RNA and DNA. 胞核嘧啶：一种嘧啶碱基，C4H 5N 3O，是核糖核酸和脱氧核糖核酸的基本成分 〔uracil〕A pyrimidine base, C4H 4N 2O 2, that is an essential constituent of RNA. 尿嘧啶：嘧啶碱基，C4H 4N 2O 2，是核糖核酸的主要成分 〔fluorouracil〕An antineoplastic agent, C4H 3FN 2O 2, used especially in the treatment of cancers of the skin, breast, and digestive system. 氟脲嘧啶：一种含氟的嘧啶碱基，C4H 3FN 2O 2，尤其用于治疗皮肤、胸部和消化系统的癌症 〔mononucleotide〕A nucleotide consisting of one molecule each of a phosphoric acid, a sugar, and either a purine or a pyrimidine base.单核苷酸：磷酸、糖、嘌呤或嘧啶碱基中的一种，它组成的一个分子的苷酸 |
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