Breadcrumb Home > Thesaurus > R Synonyms of reactor Find synonyms for: Noun 1. reactor, electrical device usage: an electrical device used to introduce reactance into a circuit 2. nuclear reactor, reactor, apparatus, setup usage: (physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of reactor (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: plebeian Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language