vaporization

noun

1. the act of vaporizing.
2. the state of being vaporized.
3. the rapid change of water into steam, especially in a boiler.
4. Medicine/Medical. a vapor therapy.

n.

1799, noun of action from vaporize. In same sense Middle English had vaporacioun (late 14c.).

n.

1. The conversion of a solid or liquid into a vapor.
2. Therapeutic application of a vapor.

In physics and chemistry, the conversion of a solid or a liquid into a gas. (See boiling point, phases of matter, and sublimation.)