Noun

1. A gas or vapour/vapor that smells strongly or is dangerous to inhale. Fumes are solid particles formed by condensation from the gaseous state, e.g. metal oxides from volatilized metals. They can flocculate and coalesce. Their particle size is between 0.1 and 1 micron. (A micron is one millionth of a metre)

   Don't stand around in there breathing the fumes while the adhesive cures.

2. A material that has been vaporized from the solid state to the gas state and re-coalesced to the solid state.

Verb

1. Emit fumes.
2. Expose something (especially wood) to ammonia fumes in order to produce dark tints.
3. To feel or express great anger.

   He's still fuming about the argument they had yesterday.

Usage notes

• In the sense of strong-smelling or dangerous vapor, the noun is typically plural, as in the example.

Verb

Verb

Verb