%oxymuriatic%

a. [ Oxy- (a) + muriatic: cf. F. oxymuriatique. ] (Chem.) Pertaining to, or consisting of, oxygen and muriatic acid, that is, hydrochloric acid. [ Archaic. ] [ 1913 Webster ]

Oxymuriatic acid, chlorine, formerly so called on the supposition that it was a compound of oxygen and muriatic acid. [ Obs. ] [ 1913 Webster ]