: 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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Researchers are now evaluating various biomarkers as candidates for the development of better diagnostic methods or to define subgroups. Isabella Backman, Hartford Courant, 25 July 2026 At the center of that model is the Longevity Quotient, Agentis's proprietary assessment that scores a person's biological age across eight biomarker domains, essentially a portfolio review for the body. Robert Reiss, Forbes.com, 22 July 2026 Stem cell research has helped drive innovative drug testing and disease modeling, while the biomarker test — in which Parkinson’s can be diagnosed in advance of symptoms — has been hailed as a groundbreaking advancement during the past few years. David Canfield, HollywoodReporter, 22 July 2026 Future versions may be able to monitor biomarkers such as glucose or cortisol. Kurt Knutsson, FOXNews.com, 21 July 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 2 Aug. 2026.

Medical Definition

: 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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