Definition of virulent adjective from the Oxford Advanced Learner's Dictionary

     

    virulent

     adjective
    adjective
    BrE BrE//ˈvɪrələnt//
     
    ; NAmE NAmE//ˈvɪrələnt//
     
    ; BrE BrE//ˈvɪrjələnt//
     
    ; NAmE NAmE//ˈvɪrjələnt//
     
     
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  1. 1(of a disease or poison) extremely dangerous or harmful and quick to have an effect a virulent form of influenza a particularly virulent flu germ
  2. 2(formal) showing strong negative and bitter feelings virulent criticism virulent nationalism
  3. Word Origin late Middle English (originally describing a poisoned wound): from Latin virulentus, from virus ‘poison’.
See the Oxford Advanced American Dictionary entry: virulent