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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However, a study published in last month in the journal Nature Communications identified a new way to accurately predict asthma attacks up to five years in advance—by looking at specific biomarkers in the blood.
—
Helen Carefoot, Flow Space, 13 Feb. 2026
The Alzheimer’s Screening and Prevention Act, or ASAP, is vital to younger and older persons because research shows dementia biomarkers may be found in the brain UP TO 20 years before the classic 10 symptoms occur.
—Letters To The Editor, Hartford Courant, 12 Feb. 2026
In general, women also tend to have more severe symptoms than men at the time of diagnosis, which mirror worse biomarkers—a greater drop in blood pressure or blood-oxygen level, for instance, and more evidence of strain on the heart.
—Erica Sloan, SELF, 10 Feb. 2026
About 15% of participants screened positively for biomarker levels that could put them at risk.
—Nicole Villalpando, Austin American Statesman, 7 Feb. 2026
See All Example Sentences for biomarker
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Helen Carefoot, Flow Space, 13 Feb. 2026
The Alzheimer’s Screening and Prevention Act, or ASAP, is vital to younger and older persons because research shows dementia biomarkers may be found in the brain UP TO 20 years before the classic 10 symptoms occur.
—Letters To The Editor, Hartford Courant, 12 Feb. 2026
In general, women also tend to have more severe symptoms than men at the time of diagnosis, which mirror worse biomarkers—a greater drop in blood pressure or blood-oxygen level, for instance, and more evidence of strain on the heart.
—Erica Sloan, SELF, 10 Feb. 2026
About 15% of participants screened positively for biomarker levels that could put them at risk.
—Nicole Villalpando, Austin American Statesman, 7 Feb. 2026
See All Example Sentences for biomarker
Cite this Entry
“Biomarker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biomarker. Accessed 22 Feb. 2026.
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
Janet RaloffLove words? Need even more definitions?
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