- myelocytic leukemia, granulocytic leukemia - a malignant neoplasm of blood-forming tissues; marked by proliferation of myelocytes and their presence in the blood
--1 is a kind of leukemia, leukaemia, leucaemia, cancer of the blood
--1 has particulars:acute myelocytic leukemia, acute myeloid leukemia; chronic myelocytic leukemia, myeloid leukemia