GNU Collaborative International Dictionary of English

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Found one definition

1.       
   Vitriolic (?), a. [Cf. F. vitriolique.]
   1. (Chem.) Of or pertaining to vitriol; derived from, or resembling, vitriol; vitriolous; as, “a vitriolic taste”.  Cf. Vitriol.
   
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   2. Biting, bitter or caustic; having or expressing strong and unpleasantly negative feelings; -- of speech or feelings; “the vitriolic denunciations of opponents by partisan columnists”.
   
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   Vitriolic acid (Old Chem.), (a) sulphuric acid.  See Vitriol (b). [Colloq.]
   
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