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- DictionaryVol·a·tile/ˈvälədl/
adjective
- 1. (of a substance) easily evaporated at normal temperatures: "volatile solvents such as petroleum ether, hexane, and benzene"
- 2. liable to change rapidly and unpredictably, especially for the worse: "the political situation was becoming more volatile"
noun
- 1. a volatile substance.