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

This year, beauty’s obsession with visible transformation has evolved into a preoccupation with longevity, spanning biomarkers, hormone health, inflammation and cellular repair. —Amy Francombe, Vogue, 19 Dec. 2025

However, accumulating evidence over the past two decades demonstrates that a biomarker called C-reactive protein – which signals the presence of low-grade inflammation – is a better predictor of risk for heart disease than cholesterol. —Mary J. Scourboutakos, The Conversation, 19 Dec. 2025

There’s a whole variety of digital biomarkers that are emerging. —Alexa Mikhail, Flow Space, 18 Dec. 2025

Diagnostic tests, like Abbott’s Alinity i TBI test, can help providers evaluate people for traumatic brain injuries with a small blood sample, by measuring two blood biomarkers in the brain. —Javier Cárdenas, Fortune, 12 Dec. 2025

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