Vapor

English Meaning

Any substance in the gaseous, or aëriform, state, the condition of which is ordinarily that of a liquid or solid.

1. Barely visible or cloudy diffused matter, such as mist, fumes, or smoke, suspended in the air.
2. The state of a substance that exists below its critical temperature and that may be liquefied by application of sufficient pressure.
3. The gaseous state of a substance that is liquid or solid under ordinary conditions.
4. The vaporized form of a substance for use in industrial, military, or medical processes.
5. A mixture of a vapor and air, as the explosive gasoline-air mixture burned in an internal-combustion engine.
6. Archaic Something insubstantial, worthless, or fleeting.
7. Archaic A fantastic or foolish idea.
8. Archaic Exhalations within a bodily organ, especially the stomach, supposed to affect the mental or physical condition. Used with the.
9. Archaic A nervous disorder such as depression or hysteria. Used with the.
10. To vaporize.
11. To give off vapor.
12. To evaporate.
13. To engage in idle, boastful talk.