/ Thesaurus / S Synonyms of synchronous motor Find synonyms for: Noun1. synchronous motor, electric motorusage: electric motor in which the speed of rotation is proportional to the frequency of the A.C. powerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language