Source : WordNet®

vitriol
     n 1: (H2SO4) a highly corrosive acid made from sulfur dioxide;
          widely used in the chemical industry [syn: {oil of
          vitriol}, {sulfuric acid}, {sulphuric acid}]
     2: abusive or venomous language used to express blame or
        censure or bitter deep-seated ill will [syn: {vituperation},
         {invective}]
     v 1: expose to the effects of vitriol or injure with vitriol
     2: subject to bitter verbal abuse
     [also: {vitriolling}, {vitriolled}]

vitriolling
     See {vitriol}