Ferrocyanate :: Ferrocyanate (n.) A salt of ferrocyanic acid; a ferrocyanide.
Ferrocyanic :: Ferrocyanic (a.) Pertaining to, derived from, or designating, a ferrocyanide..
Ferrocyanide :: Ferrocyanide (n.) One of a series of complex double cyanides of ferrous iron and some other base.
Hydroferrocyanic :: Hydroferrocyanic (a.) Pertaining to, or containing, or obtained from, hydrogen, ferrous iron, and cyanogen; as, hydroferrocyanic acid. See Ferrocyanic..