Real Dictionary

boric acid in American English
a white, crystalline compound, H3BO3, with the properties of a weak acid, used as a mild antiseptic and in the manufacture of glass, enamels, flame retardants, etc.
noun: a white, crystalline acid, H3BO3, occurring in nature or prepared from borax: used chiefly in the manufacture of ceramics, cements, glass, and enamels, for fireproofing, and in medicine in aqueous solution as a mild antiseptic

boric acid in British English
noun: a white soluble weakly acid crystalline solid used in the manufacture of heat-resistant glass and porcelain enamels, as a fireproofing material, and as a mild antiseptic. Formula: H3BO3