/ Thesaurus / B Synonyms of barium enema Find synonyms for: Noun1. barium enema, enema, clysterusage: enema in which a contrast medium (usually barium sulfate) is injected into the rectum and X-rays are taken to search for lesionsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language