A disease in which the cells of a tissue undergo uncontrolled (and often rapid) proliferation.
User Defined Definitions
"any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream"
"a small zodiacal constellation in the northern hemisphere; between Leo and Gemini"
"the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22"