fume
Intransitive VerbTransitive Verb[C/U] Both
pl: fumespast: fumedpp: fumeding: fuming
The noun carries a heavy sensory association with chemical sharpness and pollution, evoking a feeling of suffocation or toxicity. It is almost always used in the plural to describe the collective smell of exhaust or industrial chemicals, creating an image of a hazy, oppressive atmosphere.
Countable when referring to specific types of gases (the fumes from several different chemicals). Uncountable when referring to the general presence of gas in the air (the room was full of fume).