sulfuric acid(redirected from oil of vitriol)
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an oily, highly caustic, poisonous compound, H2SO4.
sul·fu·ric ac·id(sŭl-fyū'rik as'id),
H2SO4; a colorless, nearly odorless, heavy, oily, corrosive liquid containing 96% of the absolute acid; used occasionally as a caustic.
Synonym(s): oil of vitriol