/ Dictionary / Index F ferrocyanic acid: Meaning and Definition of Find definitions for: fer'ro•cy•an'ic ac'id Pronunciation: (fer'ō-sī-an'ik, fer"-), [key] — Chem. Chem. a white, crystalline, unstable, water-soluble solid, HFe(CN), obtained by the interaction of a ferrocyanide and an acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ferroconcrete ferrocyanide Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language