Ferricyanide
Pronunciation : Fer`ri*cy"a*nide (; 104)
Part of Speech : n.
Etymology : [Ferri- + cyanide.] (Chem.)
Definition : Defn: One of a complex series of double cyanides of ferric iron and some other base. Potassium ferricyanide (Chem.), red prussiate of potash; a dark, red, crystalline salt, K6(CN)12Fe2, consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue.
Source : Webster's Unabridged Dictionary, 1913