- leukemia: malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer
- Leukemia (American English) or leukaemia (British English; Greek leukos ', "white"; aima ', "blood") is a cancer of the blood or bone marrow characterized by an abnormal increase of blood cells, usually leukocytes (white blood cells). Leukemia is a broad term covering a spectrum of diseases. ...
- Group of cancers of the blood-forming tissues
- Alternative spelling of leukaemia
- A cancer of the blood or bone marrow. Leukaemia, like other cancers, result from changes to the DNA which activate cancer-causing cells or deactivate cancer-suppressing cells. ...
- An increase in the number of ineffective and immature white blood cells causing a weakened immune system which leaves the body susceptible to infection.
- lit. "white blood" – cancer of the developing cells of the bone marrow, leading to massive overproduction of leucocytes.
- Form of cancer resulting in an overproduction of abnormal white blood cells. This overproduction suppresses normal red blood cell and platelet production.
- Cancer-like disease of the blood characterised by a proliferation of white cells. It can be caused by exposure to radiation, but it is not exclusively due to such exposure.
- a group of rare cancers, sometimes described as cancer of the blood. Some types occur in children and some are linked with exposure to radiation, and perhaps to radon.