cytosine
/ˈsaɪtəsiːn/noun
mass noun
1- Biochemistry a compound found in living tissue as a constituent base of DNA. It is paired with guanine in double-stranded DNA.【生化】胞嘧啶。
1.1
- A pyrimidine derivative; chem. formula: C4H5N3O.嘧啶衍生物; 化学分子式： C4H5N3O.