American English

Definition of proliferation noun from the Oxford Advanced American Dictionary

 

proliferation

 noun
noun
NAmE//prəˌlɪfəˈreɪʃn//
 
[uncountable, singular]
 
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the sudden increase in the number or amount of something; a large number of a particular thing attempts to prevent cancer cell proliferation a proliferation of personal computers
See the Oxford Advanced Learner's Dictionary entry: proliferation