/ Thesaurus / W Synonyms of wankel engine Find synonyms for: Noun1. Wankel engine, Wankel rotary engine, epitrochoidal engine, rotary engineusage: a rotary engine that is a four-stroke internal-combustion engine without reciprocating partsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language