/ Dictionary / Index G glutenin: Meaning and Definition of Find definitions for: glu•ten•in Pronunciation: (glt'n in), [key] a simple protein of cereal grains that imparts adhesive properties to flour. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gluten flour glutenous Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language