: a pyrimidine base C5H6N2O2 that is one of the four bases coding genetic information in the polynucleotide chain of DNA compare adenine, cytosine, guanine, uracil
Examples of thymine in a Sentence
Recent Examples on the Web
Examples are automatically compiled from online sources to
show current usage.Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Those rungs are made up of pairs of four different chemical building blocks, called bases — adenine, thymine, cytosine and guanine (A,T,C and G).—F.d. Flam, Mercury News, 26 Nov. 2025 Adenine always pairs with thymine, and guanine always pairs with cytosine.—IEEE Spectrum, 2 Oct. 2025 Biology’s four bases—adenine (A), thymine (T), cytosine (C) and guanine (G)—encode the instructions that keep life alive.—Andrew Whalen, Forbes.com, 9 July 2025 The metaphor leaps out: Like letters of the alphabet, molecules (the nucleotide bases A, T, C and G, for adenine, thymine, cytosine and guanine) are arranged into sequences — words, paragraphs, chapters, perhaps — in every organism, from bacteria to humans.—Ingrid Wickelgren, Quanta Magazine, 5 Feb. 2025 See All Example Sentences for thymine
Word History
Etymology
International Scientific Vocabulary, from New Latin thymus
: a pyrimidine base C5H6N2O2 that is one of the four bases coding genetic information in the polynucleotide chain of DNA compare adenine, cytosine, guanine, uracil
Share