| 单词 | 尿嘧啶 |
| 释义 | 〔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 〔base〕One of the purines (adenine and guanine) or pyrimidines (cystosine, thymine, and uracil) that occurs attached to the sugar component of DNA or RNA.碱基：嘌呤（腺嘌呤和鸟嘌呤）或嘧啶（胸嘧啶、胸腺嘧啶和尿嘧啶）的一种，附着在脱氧核糖核酸或核糖核酸的糖分子上〔uridine〕A white, odorless powder, C9H 12N 2O 6, that is the nucleoside of uracil, important in carbohydrate metabolism, and used in biochemical experiments. 尿苷：白色无味粉末，C9H 12N 2O 6，是尿嘧啶中的核苷，在糖类新陈代谢作用中很重要，用于生化实验中 〔pyrimidine〕Any of several basic compounds derived from or structurally related to pyrimidine, especially the nucleic acid constituents uracil, cytosine, and thymine.嘧啶类：由嘧啶衍生出来或在结构上与嘧啶有关的一种基本混合物尤指核酸组成的尿嘧啶，胞嘧啶和胸腺嘧啶 |
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