挥发 huīfā volatile Origin Definitions Defs Strokes Stroke Words Sentences Sents 挥发性 huīfāxìng volatility the property or tendency of a substance to vaporize or evaporate easily at normal temperatures挥发油 huīfāyóu gasoline a volatile flammable liquid mixture of hydrocarbons used as a fuel挥发性存储器 huīfāxìngcúnchǔqì volatile memory 易挥发 yìhuīfā volatile