/ Dictionary / Index S soy flour: Meaning and Definition of Find definitions for: soy' flour" Pronunciation: [key] finely ground soybeans, most commonly used as an additive to other flours, processed meats, cereals, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. soybean oil Soyinka Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language