Definition of "volatility"

The state of being volatile.  examples

(uncountable) The state of having a low boiling point and evaporating readily.  examples

(computing, uncountable) The state of not retaining data in the absence of power.  examples

(uncountable) The state of being able to fly.  examples

(uncountable) The state of being unpredictable.  examples

(finance, countable) A quantification of the degree of uncertainty about the future price of a commodity, share, or other financial product.  quotations  examples