Meaning of “cancer” in the English Dictionary

"cancer" in British English

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uk /ˈkæn.sər/ us /ˈkæn.sɚ/

B1 [ C or U ] a serious disease that is caused when cells in the body grow in a way that is uncontrolled and not normal, killing normal cells and often causing death:

He died of liver cancer.
cancer of the cervix/stomach
breast/bowel/lung cancer
cancer cells
a cancer patient
It was a secondary cancer.
See also

[ C ] a harmful activity that spreads quickly:

Drug abuse is a cancer that is destroying our society.

More examples

adjective uk /ˈkæn.sə.rəs/ us /ˈkæn.sə.rəs/

a cancerous growth/tumour

Cancernoun [ C or U ]

uk /ˈkæn.sər/ us /ˈkæn.sɚ/

(Definition of “cancer” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"cancer" in American English

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cancernoun [ C/U ]

us /ˈkæn·sər/

cancer noun [ C/U ] (DISEASE)

a disease in which cells in the body grow without control, or a serious medical condition caused by this disease:

[ U ] He died from cancer of the stomach.
adjective us /ˈkæn·sər·əs/

Surgeons removed a cancerous growth from her lung.

Cancernoun [ C/U ]

us /ˈkæn·sər/

the fourth sign of the zodiac, covering the period June 22 to July 22 and represented by a crab, or a person born during this period

(Definition of “cancer” from the Cambridge Academic Content Dictionary © Cambridge University Press)