Ferricyanic \Fer`ri*cy*an"ic\, a. [Ferri- + cyanic.]

(Chem.) Pertaining to, or derived from, a ferricyanide.

Ferricyanic acid (Chem.), a brown crystalline substance, H6(CN)12Fe2, obtained from potassium ferricyanide, and regarded as the type of the ferricyanides; -- called also hydro-ferricyanic acid, hydrogen ferricyanide, etc.

Source: Webster's Revised Unabridged Dictionary (1913)