neurovirulent nonvirulent supervirulent urovirulent virulently virulentness virulence virulency (dated) virus extremely venomous or poisonous extremely...
From virulent + -ly. virulently (comparative more virulently, superlative most virulently) in a virulent manner in a virulent manner...
From virulent + -ed. virulented (not comparable) (obsolete) Made virulent; poisoned. “virulented”, in Webster’s Revised Unabridged Dictionary, Springfield...