/ Dictionary / Index B barium enema: Meaning and Definition of Find definitions for: bar'ium en"ema Pronunciation: [key] — Med. Med. See under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. barium chromate barium hydroxide Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language