n :  leukemia of either of two types marked by an abnormal increase in the number of white blood cells (as lymphocytes) which accumulate in bone marrow, lymphoid tissue (as of the lymph nodes and spleen), and circulating blood - called also lymphatic leukemia , lymphoid leukemia  - see ACUTE LYMPHOBLASTIC LEUKEMIA CHRONIC LYMPHOCYTIC LEUKEMIA  .
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.