volatility

英 [,vɒlə'tɪlətɪ] 美[,vɑlə'tɪləti]

• n. [化学] 挥发性；易变；活泼

1. the property of changing readily from a solid or liquid to a vapor

2. the trait of being unpredictably irresolute;

"the volatility of the market drove many investors away"

3. being easily excited