Chem. [f. ARSENIC sb.1, the ending being identified with -IC in nitric, phosphoric.] Of or belonging to arsenic; in Chem. applied to compounds in which arsenic combines as a pentad. Arsenic anhydride = arsenic pentoxide.
1801. Chenevix, in Phil. Trans., XCI. 219. It was found to contain arsenic acid.
1876. Harley, Mat. Med., 295. Arsenic Anhydride is the highest state of oxydation of the metal.
1881. Roscoe, &c., Chem., I. 530. The salts of arsenic acid, or the arsenates, are isomorphous with the phosphates.