(organic chemistry) Any ester of sulfuric acid. / (inorganic chemistry) Any salt of sulfuric acid.

(American spelling, transitive, chemistry) To treat something with sulfuric acid, a sulfate, or with sulfur dioxide. / (of a lead-acid battery) To accumulate a deposit of lead sulfate.

The magnesium salt of sulfuric acid (chemical formula MgSO₄), commonly called Epsom salts.

An ionic detergent, sodium dodecyl sulfate, used in many household products.

(chemistry) a simple binary compound of sulfur and nitrogen, S₄N₄, having a ring structure; it is explosive / (chemistry) an inorganic polymer, [SN]ₙ, that has metallic properties

(technical) Mustard gas.

(American spelling) Containing sulfur. / (chemistry) Of, or relating to sulfur, especially in its lower oxidation state.

(American spelling, chemistry) Of, or relating to sulfur, especially in its higher oxidation state

(chemistry) The sodium salt of sulfurous acid, Na₂SO₃, used as a food preservative, in photography and in many industrial applications.

(American spelling, inorganic chemistry) A toxic gas, of molecular formula SO₂ that is found in the emissions of volcanos and those of burning coal or petroleum; dissolves in water to form sulfurous acid and, in the presence of oxygen, sulfuric acid, and is thus responsible for acid rain.