Vir"u*lent (?), a. [L. virulentus, fr. virus poison: cf. F. virulent. See Virus.]

1.

Extremely poisonous or venomous; very active in doing injury.

A contagious disorder rendered more virulent by uncleanness. Sir W. Scott.

2.

Very bitter in enmity; actuated by a desire to injure; malignant; as, a virulent invective.

 

© Webster 1913.

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