Longman Dictionary of Contemporary English homepage

Topic: CHEMISTRY

Date: 1500-1600
Language: French
Origin: Latin volatilis, from volare 'to fly'

volatile

adjective
     
vol‧a‧tile
1 a volatile situation is likely to change suddenly and without warning:
an increasingly volatile political situation
the highly volatile stock and bond markets
2 someone who is volatile can suddenly become angry or violent
3HC technical a volatile liquid or substance changes easily into a gas
volatility noun [uncountable]
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