Synonyms: exhaust, exhaust fumes, fumes
Definition: gases ejected from an engine as waste products
Similar words: waste, waste material, waste matter, waste product
Definition: any materials unused and rejected as worthless or unwanted
Usage: they collect the waste once a week; much of the waste material is carried off in the sewers
Similar words: gas
Definition: a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely