uracil
/ˈjʊərəsɪl/noun
mass noun
1- Biochemistry a compound found in living tissue as a constituent base of RNA. In DNA it is replaced by thymine【生化】尿嘧啶, 二氧嘧啶。
1.1
- A pyrimidine derivative; chem. formula: C4H4N2O2.一种嘧啶衍生物; 化学分子式： C4H4N2O2.
词源
late 19th cent.: from ur(ea) +ac(etic) + -IL.