/ Dictionary / Index T tannic: Meaning and Definition of Find definitions for: tan•nic Pronunciation: (tan'ik), [key] — adj. of, pertaining to, or derived from tan or tannin. (of wine) having an astringent taste imparted by the presence of tannin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tannic (Thesaurus) Tannhäuser tannic acid Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language