Glossary
Biomarker
(BY-oh-MAR-ker)
A biological molecule found in blood, other body fluids, or tissues that is a sign of a normal or abnormal process, or of a condition or disease. A biomarker may be used to see how well the body responds to a treatment for a disease or condition. Also called molecular marker and signature molecule.
Definition from the National Cancer Institute’s NCI Dictionary of Cancer Terms.