/ Dictionary / Index A acetic: Meaning and Definition of Find definitions for: a•ce•tic Pronunciation: (u-sē'tik, u-set'ik), [key] — adj. pertaining to, derived from, or producing vinegar or acetic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acetic (Thesaurus) acetazolamide acetic acid Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language