/ Dictionary / Index F fish flour: Meaning and Definition of Find definitions for: fish' flour" Pronunciation: [key] powdered fish, high in protein, used as an ingredient in other foods. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fish flake fishfly Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language