/ Dictionary / Index A anacidity: Meaning and Definition of Find definitions for: an•a•cid•i•ty Pronunciation: (an"a-sid'i-tē), [key] — n. Med. the abnormal absence of hydrochloric acid in the stomach. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. anachronous anaclastic Related Content Daily Word Quiz: diurnal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language