Synonyms for Vitriol (same or very similar meaning)
WordNet sense 1 ((H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry):
oil of vitriol, sulfuric acid, sulphuric acid
WordNet sense 2 (abusive or venomous language used to express blame or censure or bitter deep-seated ill will):
invective, vituperation
From the ODE community, based on WordNet
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