/ Thesaurus / C Synonyms of colonic irrigation Find synonyms for: Noun1. colonic irrigation, colonic, enema, clysterusage: a water enema given to flush out the colonWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language