Fer·ri·cy·an·ic a. 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.
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ferricyanic acid
n : a brown unstable acid formed from ferricyanide