exhaust system ex·haust·sys·tem uncommon noun 1. system consisting of the parts of an engine through which burned gases or steam are discharged Synonymsexhaustexhaust system Related words Broader terms system Parts automobile engine Part of exhaust manifoldexhaust pipeexhaust valvesilencertailpipe WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
