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
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Others, including Moledina, are homing in on more precise biomarkers that can be tracked in urine tests. Jyoti Madhusoodanan, Scientific American, 17 Mar. 2026 Latest news on heart health New cholesterol guidelines urge screening in your 30s and to test for 2 extra biomarkers. Erika Edwards, NBC news, 16 Mar. 2026 Some research suggests biomarker testing could save money by landing on the right treatments faster and avoiding some of these costs. Jamie Ducharme, USA Today, 12 Mar. 2026 Overall, Shadyab said, understanding that this biomarker can be observed many years before dementia or mild cognitive impairment symptoms appear offers a chance for intervention. Paul Sisson, San Diego Union-Tribune, 12 Mar. 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 21 Mar. 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
Last Updated: - Updated example sentences
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