/ Thesaurus / B Synonyms of brush discharge Find synonyms for: Noun1. brush discharge, discharge, spark, arc, electric arc, electric dischargeusage: discharge between electrodes creating visible streamers of ionized particlesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language