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

Recent Examples on the Web

No one explicitly bans caffeine or alcohol, but after days of obsessing over my biomarkers, both begin to seem entirely irrelevant. — Abby Montanez, Robb Report, 23 Aug. 2026

Oura sells a 50-biomarker blood panel through Quest Diagnostics for $99. — Arya Rao, STAT, 19 Aug. 2026

In the new study, estrogen users had more favorable amyloid measures in blood and spinal fluid, but there were no significant differences in amyloid brain scans and several other biomarkers. — Tom Gavin, EverydayHealth.com, 12 Aug. 2026

Biolyz isn’t the only biomarker test Leverkusen uses; the team also utilizes capillary blood draws through the fingertip or earlobe. — Justin Birnbaum, Sportico.com, 10 Aug. 2026

Word History

First Known Use

1973, in the meaning defined above

Rhymes for biomarker

• barker
• darker
• marker
• starker

Medical 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