Definition of "vapor" in English

Noun

1. Cloudy diffused matter such as mist, steam or fumes suspended in the air.

2. The gaseous state of a substance that is normally a solid or liquid.

3. Something insubstantial, fleeting, or transitory; unreal fancy; vain imagination; idle talk; boasting.

4. Any medicinal agent designed for administration in the form of inhaled vapour.

5. Hypochondria; melancholy; the blues; hysteria, or other nervous disorder.

6. Wind; flatulence.

Verb

1. To become vapor; to be emitted or circulated as vapor.

2. To turn into vapor.

   • to vapor away a heated fluid

3. To emit vapor or fumes.

4. To use insubstantial language; to boast or bluster.

5. To give (someone) the vapors; to depress, to bore.