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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Diagnosing dementia or Alzheimer’s in any patient begins with evaluation by a skilled neurologist, along with specific blood biomarkers, specialized MRI scans, along with cognitive testing known as the The Montreal Cognitive Assessment (MoCA). Robert Glatter, Forbes.com, 20 June 2025 The Orb scans a user’s iris, which is a one-of-a-kind biomarker like a fingerprint. Reed Albergotti, semafor.com, 20 June 2025 The data detailed what people ate, as well as blood biomarkers for more than 40,000 participants and blood metabolites for nearly 11,500. Kaitlin Sullivan, Health, 4 June 2025 With the use of additional biomarkers and prostate MRI, the diagnosis of men with prostate cancer is more precise and avoids the detection of low-risk indolent prostate cancer and rather focuses on the early detection and effective treatment of more clinically risky prostate cancer. Franklin D Gaylis, San Diego Union-Tribune, 28 May 2025 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 6 Jul. 2025.

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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