/ Dictionary / Index X xanthan: Meaning and Definition of Find definitions for: xan•than Pronunciation: (zan'thun), [key] — n. Nutrition. a water-soluble natural gum produced by the fermentation of sugar with certain microorganisms and used as a binder, extender, or stabilizer in foods and other products. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. xanth- xanthate Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language