barium enema barium dioxide • barium hydroxide · · · Info · Definitions · Characters · · barium enema · · Text Common · · Latin · · Scripts 12 · · Length 6 · · Syllables Definitions · · · (noun) enema in which a contrast medium (usually barium sulfate) is injected into the rectum and X-rays are taken to search for lesions. Synonyms: barium enema. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075