Simple Definition of cancer
: a serious disease caused by cells that are not normal and that can spread to one or many parts of the body
: something bad or dangerous that causes other bad things to happen
Cancer : the fourth sign of the zodiac that comes between Gemini and Leo and has a crab as its symbol
Full Definition of cancer
1 capitalized a : a northern zodiacal constellation between Gemini and Leo b (1) : the fourth sign of the zodiac in astrology — see zodiac table (2) : one born under the sign of Cancer
2 [Latin, crab, cancer] a : a malignant tumor of potentially unlimited growth that expands locally by invasion and systemically by metastasis b : an abnormal bodily state marked by such tumors
3 : something evil or malignant that spreads destructively <the cancer of hidden resentment — Irish Digest>
4 a : an enlarged tumorlike plant growth (as that of crown gall) b : a plant disease marked by such growths
Examples of cancer
He was diagnosed with cancer.
She learned that she has cancer.
Eating certain foods may help reduce the risk of cancer.
Advanced cancers are more difficult to treat.
I'm a Taurus, but my best friend is a Cancer.
Origin of cancer
Middle English, from Latin (genitive Cancri), literally, crab; akin to Greek karkinos crab, cancer
First Known Use: 14th century
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