/ Dictionary / Index X xanthate: Meaning and Definition of Find definitions for: xan•thate Pronunciation: (zan'thāt), [key] — n. Chem. a salt or ester of xanthic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: xanthate (Thesaurus) xanthan Xanthe Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language