Prussian
Pronunciation : Prus"sian
Part of Speech : a.
Etymology : [From Prussia, the country: cf. F. prussien.]
Definition : Defn: Of or pertaining to Prussia. -- n.
Defn: A native or inhabitant of 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 Williamson's blue, insoluble Prussian blue, Berlin blue, etc. -- Prussian carp (Zo?l.) See Gibel. -- Prussian green. (Chem.) Same as Berlin green, under Berlin.
Source : Webster's Unabridged Dictionary, 1913