chronic myelomonocytic leukemia

(KRAH-nik MY-eh-loh-MAH-noh-SIH-tik loo-KEE-mee-uh) A slowly progressing type of myelodysplastic/myeloproliferative disease in which too many myelomonocytes (a type of white blood cell) are in the bone marrow, crowding out other normal blood cells, such as other white blood cells, red blood cells, and platelets. Also called CMML.