\Vir"u*lence\, Virulency \Vir"u*len*cy\, n. [Cf. F. virulence, L. virulentia an offensive odor, a stench.] 1. The quality or state of being virulent or venomous; poisonousness; malignancy. 2. Extreme bitterness or malignity of disposition. ``Refuted without satirical virulency.'' --Barrow. The virulence of one declaimer, or the profundities and sublimities of the other. --I. Taylor.