| flash vaporization [¦flash vā·pǝ·rǝ`zā·shǝn] CHEMICAL ENGINEERING Rapid vaporization achieved by passing a volatile liquid through continuously heated coils. ENGINEERING A method used for withdrawing liquefied petroleum gas from storage in which liquid is first flashed into a vapor in an intermediate pressure system, and then a second stage regulator provides the low pressure required to use the gas in appliances. |