a. [ From Prussia, the country: cf. F. prussien. ] Of or pertaining to Prussia. --
Prussian blue (Chem.),
Prussian carp (Zool.)
Prussian green. (Chem.)
n. [ Cf. F. prussiate. ] (Chem.) A salt of prussic acid; a cyanide. [ 1913 Webster ]
Red prussiate of potash.
Yellow prussiate of potash.
a. [ Cf. F. prussique. ] (Old Chem.) designating the acid now called hydrocyanic acid, but formerly called prussic acid, because Prussian blue is derived from it or its compounds. See Hydrocyanic. [ 1913 Webster ]