/ Thesaurus / S Synonyms of spinal fusion Find synonyms for: Noun1. fusion, spinal fusion, correctionusage: correction of an unstable part of the spine by joining two or more vertebrae; usually done surgically but sometimes done by traction or immobilizationWordNet 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