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.
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 Second, tools such as machine learning and computer science can help identify drug targets and create biomarkers that predict patient outcomes, among other capabilities. Noah Lyons, San Diego Union-Tribune, 11 Oct. 2025 While there’s no single biomarker that can perfectly predict disease or mortality, there are many that reign supreme in understanding women’s overall health and disease risk. Alexa Mikhail, Flow Space, 1 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 18 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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