Definitions for volatility-ˈtɪl ɪ ti

vol•a•tileˈvɒl ə tl, -tɪl; esp. Brit. -ˌtaɪl(adj.)

evaporating rapidly; passing off readily in the form of vapor:
Acetone is a volatile solvent.
Category: Chemistry
tending or threatening to break out into open violence; explosive:
a volatile political situation.
characterized by or liable to sharp or sudden changes; unstable:
a volatile stock market.
changeable, as in mood or temper; mercurial; flighty.
fleeting; transient.
(of computer storage) not retaining data when electrical power is turned off.
Category: Computers
Archaic. flying or able to fly.
(n.)a volatile substance, as a gas or solvent.
Category: Common Vocabulary, Chemistry

1250–1300; ME < L volātilis able to fly =volā(re) to fly +-tilis -tile

vol`a•til′i•ty-ˈtɪl ɪ ti(n.)vol′a•tile•ness

volatility(noun)
the property of changing readily from a solid or liquid to a vapor
volatility, unpredictability(noun)
the trait of being unpredictably irresolute
"the volatility of the market drove many investors away"
excitability, excitableness, volatility(noun)
being easily excited

Volatility(noun)
quality or state of being volatile; disposition to evaporate; changeableness; fickleness

Citation

"volatility." Definitions.net. STANDS4 LLC, 2013. Web. 23 May 2013. <http://www.definitions.net/definition/volatility>.