Definition of thymine in English:

thymine

Syllabification: thy·mine
Pronunciation: /ˈTHīˌmēn, -min
 
/

noun

Biochemistry
A compound that is one of the four constituent bases of nucleic acids. A pyrimidine derivative, it is paired with adenine in double-stranded DNA.
More example sentences
  • The derivatives of purine are called adenine and guanine, and the derivatives of pyrimidine are called thymine, cytosine and uracil.
  • Of the four bases that make up DNA - adenine, thymine, cytosine and guanine - only cytosine has the potential to be methylated in humans and most mammals.
  • In DNA the bases pair to form a ladder-like structure, with adenine paired with thymine and guanine with cytosine.

Origin

late 19th century: from thymus + -ine4.

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Pronunciation: dəˈmôrəˌlīz
verb
cause (someone) to lose confidence or hope; dispirit