leukemia (n.) Look up leukemia at Dictionary.com
progressive blood disease characterized by abnormal accumulation of leucocytes, 1851, on model of German Leukämie (1848), coined by R. Virchow from Greek leukos "clear, white" (from PIE *leuk- "light, brightness;" see light (n.)) + haima "blood" (see -emia). Formerly also leucemia.