/ Thesaurus / A Synonyms of asteroid belt Find synonyms for: Noun1. asteroid belt, beltusage: the region of interplanetary space between Mars and Jupiter where most asteroids are foundWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language