sulphuric

from The Century Dictionary.

• Of or pertaining to or obtained from sulphur.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to sulphur.
• adjective (Chem.) Derived from, or containing, sulphur; specifically, designating those compounds in which the element has a higher valence as contrasted with the sulphurous compounds.
• adjective [Obs.] A heavy, corrosive, oily liquid, H2SO4, colorless when pure, but usually yellowish or brownish, produced by the combined action of sulphur dioxide, oxygen (from the air), steam, and nitric fumes. It attacks and dissolves many metals and other intractable substances, sets free most acids from their salts, and is used in the manufacture of hydrochloric and nitric acids, of soda, of bleaching powders, etc. It is also powerful dehydrating agent, having a strong affinity for water, and eating and corroding paper, wood, clothing, etc. It is thus used in the manufacture of ether, of imitation parchment, and of nitroglycerin. It is also used in etching iron, in removing iron scale from forgings, in petroleum refining, etc., and in general its manufacture is the most important and fundamental of all the chemical industries. Formerly called vitriolic acid, and now popularly vitriol, and oil of vitriol.
• adjective See Disulphuric acid, under Disulphuric.
• adjective sulphur trioxide. See under Sulphur.
• adjective common anæsthetic ether; -- so called because made by the catalytic action of sulphuric acid on alcohol. See Ether, 3 (a).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective chiefly UK Alternative spelling of sulfuric.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective of or relating to or containing sulfur