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English definition of “virulent”

virulent

adjective uk   /ˈvɪr.ʊ.lənt/ us  
A virulent disease or poison is dangerous and spreads or affects people very quickly: A particularly virulent strain of flu has recently claimed a number of lives in the US. formal full of hate and violent opposition: She is a virulent critic of US foreign policy.
(Definition of virulent from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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