/ Dictionary / Index F ferric ammonium oxalate: Meaning and Definition of Find definitions for: fer'ric ammo'nium ox'alate Pronunciation: [key] — Chem. Chem. a green, crystalline, water-soluble, synthetically produced powder, (NH)Fe(CO)&multiplydot;3HO, used chiefly in the manufacture of blueprint paper. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ferric ferric chloride Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language