leukaemia(n = noun.state) cancer of the blood, leucaemia, leukemia - malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer;
is a kind of cancer, malignant neoplastic disease
has particulars: acute leukemia, chronic leukemia, lymphocytic leukemia, histiocytic leukaemia, histiocytic leukemia, monoblastic leukaemia, monoblastic leukemia, monocytic leukaemia, monocytic leukemia, myeloblastic leukemia, granulocytic leukemia, myelocytic leukemia

leukaemia, n. (US leukemia) Med. any of a group of malignant diseases in which the bone-marrow and other blood-forming organs produce increased numbers of leucocytes.

Derivative:
leukaemic adj.

Etymology:
mod.L f. G Leuk{auml}mie f. Gk leukos white + haima blood

histiocytic leukaemia, monoblastic leukaemia, monocytic leukaemia