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

More than 100 biomarkers are in the initial test — the exact number varies by gender a little. —Andrew Williams, Forbes.com, 15 July 2025

These included two phthalates, bisphenol S and the pesticide biomarkers 3-PBA and trans-DCCA. —Daniella Gray, MSNBC Newsweek, 2 July 2025

Intriguingly, the biomarker also reflected changes in sleep quality, a telling early indicator since poor sleep patterns often precede the return of depression symptoms. —IEEE Spectrum, 30 June 2025

Autoimmune diseases were used as an indirect marker of chronic inflammation, rather than direct measures using inflammatory biomarkers, such as interleukin-6 (IL-6). —New Atlas, 24 June 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