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English definition of “epidemic”

epidemic

noun uk   /ˌep.ɪˈdem.ɪk/ us  

epidemic noun (DISEASE)

[C] the appearance of a particular disease in a large number of people at the same time: a flu epidemic

epidemic noun (PROBLEM)

[C usually singular] a particular problem that seriously affects many people at the same time: a crime/unemployment epidemic

epidemic

adjective uk   /ˌep.ɪˈdem.ɪk/ us  
happening a lot and affecting many people: Poverty in this country has reached epidemic proportions . Crime and poverty are epidemic in the city.
(Definition of epidemic from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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