telomere

noun

telo·​mere ˈte-lə-ˌmir How to pronounce telomere (audio) ˈtē- How to pronounce telomere (audio)
: the natural end of a eukaryotic chromosome composed of a usually repetitive DNA sequence and serving to stabilize the chromosome

Examples of telomere 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.
And other studies show that too much vitamin D was also associated with shorter telomeres. Lauren J. Young, Scientific American, 23 Dec. 2025 Those included chemical changes in DNA that suggest a person’s pace of aging, and the length of their telomeres, which are protective structures at the ends of chromosomes. Tom Gavin, EverydayHealth.com, 10 Dec. 2025 Past studies in the general population have found mixed results, with some linking moderate coffee intake to longer telomeres, and others — especially those looking at instant coffee — finding no benefit. Deirdre Bardolf, FOXNews.com, 6 Dec. 2025 According to their findings, DNA components that reflect biological age — telomeres — tend to be shorter and break down faster in caregivers than non-caregivers. Alexa Liacko, CBS News, 5 Dec. 2025 See All Example Sentences for telomere

Word History

Etymology

International Scientific Vocabulary

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of telomere was in 1940

Browse Nearby Words

Cite this Entry

“Telomere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/telomere. Accessed 26 Dec. 2025.

Medical Definition

telomere

noun
: the natural end of a eukaryotic chromosome composed of a usually repetitive DNA sequence and serving to stabilize the chromosome
telomeric adjective
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!