Virulency :: Virulency (n.) The quality or state of being virulent or venomous; poisonousness; malignancy.
Virulency :: Virulency (n.) Extreme bitterness or malignity of disposition.
Virulent :: Virulent (a.) Extremely poisonous or venomous; very active in doing injury.
Virulent :: Virulent (a.) Very bitter in enmity; actuated by a desire to injure; malignant; as, a virulent invective..