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
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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 As people age, telomeres get shorter, which can increase the likelihood of poor health and mortality, prior studies have shown. Melissa Rudy, FOXNews.com, 29 Aug. 2025 Additional research has shown the same four-part program can lower blood sugars and heart disease risk in patients with diabetes, reduce prostate cancer cell growth, improve depression and even lengthen telomeres, the protective caps of chromosomes that are worn away by aging. Sandee Lamotte, CNN Money, 29 July 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 20 Sep. 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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