IPA: //ˈbaɪoʊˌmɑrkər//
KK: /ˈbaɪoʊˌmɑrkər/
A specific biological indicator that can be used to measure or show the effects of a disease or condition.
Doctors often use biomarkers to track the progress of a patient's illness.
Biomarker is formed from "bio-" (from Greek "bios", meaning life) and "marker" (from Old English "mearc", meaning a sign or boundary). The word refers to a biological sign that indicates a particular state or condition of life.
Think of 'bio-' meaning life, and 'marker' as a sign. This helps you remember that a biomarker is a sign of a specific condition related to life.