cancer meaning and definition

CANCER noun

Definition of cancer (noun)

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
   • synonyms: malignant neoplastic disease
2. (astrology) a person who is born while the sun is in Cancer
   • synonyms: Crab
3. a small zodiacal constellation in the northern hemisphere; between Leo and Gemini
4. the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22
   • synonyms: Cancer the Crab, Crab
5. type genus of the family Cancridae
   • synonyms: genus Cancer