cancer

noun

1. 1

   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

2. 2

   type genus of the family Cancridae

3. 3

   the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22

4. 4

   a small zodiacal constellation in the northern hemisphere; between Leo and Gemini

5. 5

   (astrology) a person who is born while the sun is in Cancer