/ Thesaurus / L Synonyms of local anesthesia Find synonyms for: Noun1. local anesthesia, local anaesthesia, anesthesia, anaesthesiausage: loss of sensation in a small area of the body (as when a local anesthetic is injected for a tooth extraction)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language