bio·​mark·​er | \ ˈbī-ō-ˌmär-kər How to pronounce biomarker (audio) \

Definition of biomarker

: 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 Its breast cancer blood test measures a biomarker that increases when a tumor is growing and decreases when treatment is effective, Edwards said. Todd Nelson, Star Tribune, 9 May 2021 This effort could include an ‘operation warp speed‘ type-accelerator for all this promising biomarker research, plus an infusion of resources to provide universal access to therapists and existing treatments right now. Susanna Schrobsdorff, Time, 17 May 2021 The new biomarker test can help physicians decide when to transfer patients to the ICU and the type of treatment to be used. Julie Washington, cleveland, 11 May 2021 Hansoon and his colleague Henrik Zetterberg will work with Brown on the establishment of the biomarker facility., 28 Apr. 2021 For more information on the differences between biomarker and genetic testing, check out the Common Testing Terminology Working Group whitepaper recommendations here. Alice Oglethorpe, Country Living, 2 Mar. 2021 Another project is aimed at searching for a biomarker that could indicate whether a person sick with Covid-19 might be at risk for long-term symptoms. NBC News, 2 Mar. 2021 Given that Alzheimer's starts in the brain 15 or more years before symptoms appear, these biomarker tests may one day identify disease much earlier. Paula Spencer Scott, Star Tribune, 24 Feb. 2021 In these studies, researchers can determine whether genetic material belongs to bacteria though a biomarker called the 16s ribosomal RNA gene, which turns up only in microbes. Robert Lee Hotz, WSJ, 21 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biomarker.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of biomarker

1973, in the meaning defined above

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The first known use of biomarker was in 1973

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Last Updated

19 Jun 2021

Cite this Entry

“Biomarker.” Dictionary, Merriam-Webster, Accessed 21 Jun. 2021.

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More Definitions for biomarker


bio·​mark·​er | \ ˈbī-ō-ˌmär-kər How to pronounce biomarker (audio) \

Medical Definition of biomarker

: 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


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