/ Thesaurus / S Synonyms of spinal anaesthesia Find synonyms for: Noun1. spinal anesthesia, spinal anaesthesia, spinal, regional anesthesia, regional anaesthesiausage: anesthesia of the lower half of the body; caused by injury to the spinal cord or by injecting an anesthetic beneath the arachnoid membrane that surrounds the spinal cordWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language