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NCI Dictionary of Cancer Terms


erythrocyte sedimentation rate  listen  (eh-RITH-roh-site SEH-dih-men-TAY-shun ...)

  The distance red blood cells travel in one hour in a sample of blood as they settle to the bottom of a test tube. The sedimentation rate is increased in inflammation, infection, cancer, rheumatic diseases, and diseases of the blood and bone marrow. Also called ESR and sedimentation rate.