lymphocytosis

noun

A condition marked by an abnormal increase in the number of lymphocytes in the bloodstream, usually resulting from infection or inflammation.

noun

The formation of lymph-cells; specifically, increase, actual or relative, in the number of lymphocytes in the blood.

noun

An increase in the number or proportion of lymphocytes in the blood

noun

an abnormal increase in the number of lymphocytes in the circulating blood