cancer noun - definition in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online (US)

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English definition of “cancer”

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cancer

noun uk   /ˈkæn.sər/  us   /-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
cancerous
adjective uk   us   /-əs/
a cancerous growth/tumour
(Definition of cancer noun from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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