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English definition of “virulent”

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virulent

adjective  /ˈvɪər·jə·lənt, ˈvɪər·ə-/ us  

virulent adjective (ACTING QUICKLY)

(of a disease) dangerous and spreading quickly, or (of poison) having an effect very quickly: a virulent strain of flu

virulent adjective (FULL OF HATE)

fierce and full of hate: virulent speech Several newspapers mounted virulent attacks.
(Definition of virulent from the Cambridge Academic Content Dictionary © Cambridge University Press)
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