from the greek meaning "white blood". Often referred to as cancer of the blood. Characterised by the widespread uncontrolled proliferation of large numbers of abnormal blood cells, usually of the white cell lineages, which take over the bone marrow and often spill out into the blood stream.
A progressive, malignant disease of the blood and blood-forming organs, characterized by over-proliferation and development of leukocytes (a type of white blood cell). There are many different forms of leukemia. sp. US: Leukemia See also: Haematology WWW Resources for Leukaemia