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vitriol

American  
[vi-tree-uhl] / ˈvɪ tri əl /

noun

  1. Chemistry. any of certain metallic sulfates of glassy appearance, as copper sulfate or blue vitriol, iron sulfate or green vitriol, zinc sulfate or white vitriol, etc.

  2. oil of vitriol; sulfuric acid.

  3. something highly caustic or severe in effect, as criticism.


verb (used with object)

vitrioled, vitrioling, vitriolled, vitriolling
  1. to treat with or as with vitriol, especially sulfuric acid.

vitriol British  
/ ˈvɪtrɪˌɒl /

noun

  1. another name for sulphuric acid

  2. any one of a number of sulphate salts, such as ferrous sulphate ( green vitriol ), copper sulphate ( blue vitriol ), or zinc sulphate ( white vitriol )

  3. speech, writing, etc, displaying rancour, vituperation, or bitterness

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to attack or injure with or as if with vitriol

  2. to treat with vitriol

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
vitriol Scientific  
/ vĭtrē-ōl′,-əl /
  1. A former name for sulfuric acid.

  2. Any of various sulfates of metals, such as ferrous sulfate (green vitriol), zinc sulfate, or copper sulfate (blue vitriol).

  3. See also blue vitriol


Etymology

Origin of vitriol

1350–1400; Middle English < Medieval Latin vitriolum, vitreolum, equivalent to Latin vitre(us) vitreous + -olum, neuter of -olus -ole 1

Explanation

Vitriol is harsh, nasty criticism. You may have deserved some blame when the cake didn't rise, but the head chef's stream of vitriol was unnecessary. Back in the day, vitriol was the name for sulfuric acid, which burns through just about anything. So think of vitriol as language so mean-spirited and bitter that it could eat through metal: "As a divorce lawyer, you were familiar with vitriol, but nothing prepared you for the time you wore a Red Sox cap at Yankee Stadium."

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Vocabulary lists containing vitriol

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Vitriol, insults and anger are there for all to see, from pretty much everyone involved.

From BBC • Mar. 10, 2025

Vitriol also poured onto Twitter and movie message boards, with people complaining in particular about the film’s test-the-limits climax.

From New York Times • Sep. 17, 2017

Ronnie Polaneczky wrote the column titled "She Can Vault Over the Vitriol" about the onslaught of mean comments Douglas has faced on social media during the Rio games.

From US News • Aug. 17, 2016

Vitriol has long been his medium of choice and with the daring glee of a graffiti artist hanging over Mt.

From Los Angeles Times • Mar. 4, 2016

Mineral at Liege yielding Brimstone and Vitriol; and the way of extracting them, 3.

From Philosophical Transactions of the Royal Society - Vol 1 - 1666 Giving some Accompt of the present Undertakings, Studies, and Labours of the Ingenious in many considerable parts of the World by Oldenburg, Henry

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