biomarker

noun

bio·​mark·​er ˈbī-ō-ˌmär-kər How to pronounce biomarker (audio)
: a distinctive biological or biologically derived indicator (such as a metabolite) of a process, event, or condition (such as aging, disease, or oil formation)

Examples of biomarker 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.
The authors reviewed findings from laboratory studies, animal studies, human biomarker studies and epidemiologic research looking at how vaping affects cells and tissues in ways linked to cancer development. Katia Hetter, CNN Money, 28 May 2026 But some of these biomarkers don’t help explain why aging is occurring. Jackie Flynn Mogensen, Scientific American, 27 May 2026 Researchers have developed a handheld cancer-screening device capable of detecting early-stage cancer biomarkers from just a single drop of blood. Mrigakshi Dixit, Interesting Engineering, 25 May 2026 The researchers emphasized that the MileAge biomarker still requires further validation before being used in clinical settings. Angelica Stabile, FOXNews.com, 23 May 2026 See All Example Sentences for biomarker

Word History

First Known Use

1973, in the meaning defined above

Time Traveler
The first known use of biomarker was in 1973

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Cite this Entry

“Biomarker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biomarker. Accessed 4 Jun. 2026.

Medical Definition

biomarker

noun
bio·​mark·​er ˈbī-ō-ˌmär-kər How to pronounce biomarker (audio)
: a distinctive biological or biologically derived indicator (as a biochemical metabolite in the body) of a process, event, or condition (as aging, disease, or exposure to a toxic substance)
age-related biomarkers of disease and degenerative changeJanet Raloff
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