ETYM French vitriol; cf. Pr. vitriol, vetriol, Spanish and Portu. vitriolo, Italian vitriuolo; from Latin vitreolus of glass, vitreus vitreous. Related to Vitreous.
Sulfuric acid; several sulfates of metals.
(H2SO4) A highly corrosive acid made from sulfur dioxide; widely used in the chemical industry; SYN. oil of vitriol, sulfuric acid, sulphuric acid.
Any of a number of sulfate salts. Blue, green, and white vitriols are copper, ferrous, and zinc sulfate, respectively.
Oil of vitriol is sulfuric acid.