noun. a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine.
- deoxyribonucleic acid
- desoxyribonucleic acid
Sentences with thymine
1. Noun, singular or mass
Each adenine on the old strand will get a new thymine, each old guanine will get a new cytosine, and vice versa.
2. Verb, non-3rd person singular present
DNA code consists of pairs of the nitrogenous bases adenine, thymine, cytosine and guanine. The bases adenine and thymine form a pair as do the bases cytosine and guanine.
But while the second pyrimidine base in DNA is thymine (T) in RNA this base is uracil (U).