/ Dictionary / Index C cellulose gum: Meaning and Definition of Find definitions for: cel'lulose gum" Pronunciation: [key] carboxymethylcellulose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cellulose acetate cellulose nitrate Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language