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.
Origin of xanthan
1960–65; probably Xanth(omonas campestris) bacterium which produces the gum + -an, variant of -ane
Also called xanthan gum.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019