/ Dictionary / Index A acidulate: Meaning and Definition of Find definitions for: a•cid•u•late Pronunciation: (u-sij'u-lāt"), [key] — -lat•ed, -lat•ing. to make somewhat acid. to sour; embitter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acidulate (Thesaurus) acidulant acidulent Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language