/ Thesaurus / E Synonyms of epidural injection Find synonyms for: Noun1. epidural injection, injectionusage: injection of an anesthetic substance into the epidural space of the spinal cord in order to produce epidural anesthesiaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language