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.
This study suggests that vitamin D works by safeguarding those telomeres. Claire Bugos, Verywell Health, 1 Oct. 2025 But the good news is that damage done to telomeres as a result of chronic stress can be reversed. Renée Onque, CNBC, 21 Sep. 2025 Some novel findings were observed, however, such as what happened to Scott's telomeres. Elizabeth Howell, Space.com, 17 Sep. 2025 SpaceX The researchers studied seven hallmarks of aging in stem cells and found clear signs of aging in those that went to space, including more inflammatory signaling and less maintenance of telomeres — the protective ends of chromosomes that prevent breaks in DNA. Evan Bush, NBC news, 6 Sep. 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

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Cite this Entry

“Telomere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/telomere. Accessed 6 Oct. 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
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