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proliferation

Pronunciation: /prəlɪfəˈreɪʃn/

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Definition of proliferation

noun

[mass noun]

rapid increase in the number or amount of something:a continuing threat of nuclear proliferation
rapid reproduction of a cell, part, or organism:we attempted to measure cell proliferation
[in singular] a large number of something:stress levels are high, forcing upon them a proliferation of ailments