Prussian
a.-
Of or pertaining to Prussia.
Prussian blue (Chem.),
any one of several complex double cyanides of ferrous and ferric iron; specifically, a dark blue amorphous substance having a coppery luster, obtained by adding a solution of potassium ferrocyanide (yellow prussiate of potash) to a ferric salt. It is used in dyeing, in ink, etc. Called also
Prussian carp (Zoöl.)
See
Prussian green . (Chem.)
Same as
