vitriol

n. biting sarcasm; glassy metallic sulfate; sulfuric acid (Archaic)

Sulfuric (or sulphuric) acid, H2SO4, is a strong mineral acid. It is soluble in water at all concentrations. It was once known as oil of vitriol, coined by the 8th-century Arabian alchemist Jabir ibn Hayyan (Geber) after his discovery of the chemical. Sulfuric acid has many applications, and is one of the top products of the chemical industry. World production in 2001 was 165 million tonnes, with an approximate value of US$8 billion. Principal uses include  ore processing, fertilizer manufacturing, oil refining, wastewater processing, and chemical synthesis.
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Noun
1. (H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry
(synonym) oil of vitriol, sulfuric acid, sulphuric acid
(hypernym) acid
(hyponym) battery acid, electrolyte acid
(substance-meronym) sulfur, S, sulphur, atomic number 16
2. abusive or venomous language used to express blame or censure or bitter deep-seated ill will
(synonym) vituperation, invective
(hypernym) abuse, insult, revilement, contumely, vilification
Verb
1. expose to the effects of vitriol or injure with vitriol
(hypernym) subject
2. subject to bitter verbal abuse
(hypernym) attack, round, assail, lash out, snipe, assault

n. vitriol, sulfuric acid, copperas

n. vitriol, biting sarcasm; glassy metallic sulfate; sulfuric acid (Archaic)