(n)a white or colorless slightly acid solid that is soluble in water and ethanol; used in the manufacture of glass and paper and adhesives and in detergents and as a flux in welding; also used as an antiseptic and food preservative, Syn.orthoboric acid
a. (Chem.) Of, pertaining to, or containing, boron. [ 1913 Webster ]
Boric acid, a white crystalline substance B(OH)3, easily obtained from its salts, and occurring in solution in the hot lagoons of Tuscany. [ 1913 Webster ]