biomarker
noun
bio·mark·er
ˈbī-ō-ˌmär-kər 
: 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
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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
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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
Cite this Entry
“Biomarker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biomarker. Accessed 18 Oct. 2025.
Copy CitationMedical Definition
biomarker
noun
bio·mark·er
ˈbī-ō-ˌmär-kər
: 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 change—Janet Raloff
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