Ferrocyanide n. : One of a series of complex double cyanides of ferrous iron and some other base.

Example:
Which of the following statements are correct regarding the reaction between potassium Ferrocyanide and KMnO4?

Taxonomy
potassium ferrocyanide, CN, free encyclopedia, compounds, Coordination chemistry, cyanide, free cyanide, search, ferrous, Identifiers, aqueous solutions, unreactive, potassium salt, biochemistry, Nomenclature, diamagnetic, species, low-spin.

Defination from the web:
ferrocyanide has been used as a probe of extracellular electron receptor in the study of redox reactions in cells. Ferricyanide is used thus any increase in ferrocyanide can be attributed to secretions of reductants or "Trans Plasma Membrane Electron Transport" ...