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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Retreats track biomarkers before and after a stay, offering tangible evidence of improvement rather than vague promises of relaxation.
—
Lauren Schuster, Miami Herald, 6 May 2026
Cortisol Awakening Response as a Biomarker A 2025 study confirmed CAR as a viable biomarker for HPA axis function and found that life stressors and chronic stress meaningfully alter individual cortisol patterns.
—Allison Palmer, Fort Worth Star-Telegram, 6 May 2026
There were clear improvements, but improvements in biomarkers are not enough to know that a drug works.
—Ross Andersen, The Atlantic, 2 May 2026
Second, the same precision-medicine approaches that are now transforming oncology must be applied to mental illness, identifying biomarkers early enough to alter disease trajectory.
—Eric J. Nestler, STAT, 28 Apr. 2026
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Lauren Schuster, Miami Herald, 6 May 2026
Cortisol Awakening Response as a Biomarker A 2025 study confirmed CAR as a viable biomarker for HPA axis function and found that life stressors and chronic stress meaningfully alter individual cortisol patterns.
—Allison Palmer, Fort Worth Star-Telegram, 6 May 2026
There were clear improvements, but improvements in biomarkers are not enough to know that a drug works.
—Ross Andersen, The Atlantic, 2 May 2026
Second, the same precision-medicine approaches that are now transforming oncology must be applied to mental illness, identifying biomarkers early enough to alter disease trajectory.
—Eric J. Nestler, STAT, 28 Apr. 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 12 May. 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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