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 newest Apple Watch can detect signs of hypertension; the Oura Ring is offering new menopause tracking features (and pretty new ceramic bands); the Samsung Galaxy Watch8 is getting into biomarker testing with a brand new antioxidant tracking and vascular load features. Maggie Ryan, Flow Space, 21 Oct. 2025 Companies like Everlywell, Thorne, and Function Health now offer kits designed to reveal deeper insights into key wellness topics, including food sensitivities, stress responses, and other key biomarkers. Sara Braun, Sacbee.com, 17 Oct. 2025 Because serotonin regulates the brain’s processing of sensory information, including sound, the test offers a unique biomarker for understanding how antidepressants might affect each individual’s neurochemistry. Kaif Shaikh, Interesting Engineering, 13 Oct. 2025 The test captures a specific biomarker called Loudness Dependence of Auditory Evoked Potentials, or LDAEP, which measures the brain’s electrical activity in response to sound. Kristen Rogers, CNN Money, 12 Oct. 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 24 Oct. 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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