/ Thesaurus / R Synonyms of rocket propulsion Find synonyms for: Noun1. rocket propulsion, reaction propulsionusage: reaction propulsion using stored oxygen for combustion; used where there is insufficient atmospheric oxygenWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language