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English definition of “plague”

plague

noun [C/U] (DISEASE)   /pleɪɡ/
a serious disease which kills many people The plague world history The plague refers to a disease that appeared several times in the 14th century and later and that killed more than one third of the people in Europe and many people in Africa and Asia; Black Death. A plague is also a large number of insects or animals which cause damage or unpleasant conditions in an area: [C] Trees throughout the Northeast are being attacked by a plague of gypsy moths.
(Definition of plague noun (DISEASE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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