[vol-uh-tl, -til or, especially Brit., -tahyl]

Volatile means something changing or changeable. It can refer to:

In general:

In economics:

In chemistry:

  • Volatility (chemistry), a measure of the tendency of a substance to vaporize. It has also been defined as a measure of how readily a substance vaporizes.
  • Volatiles, a group of compounds with low boiling points that are associated with a planet's or moon's crust and/or atmosphere
  • Volatile liquids, liquid with a high vapor pressure or low boiling point
  • Volatile organic compounds, organic compounds that can evaporate at normal temperature and pressure, and are often regulated by governments
  • Volatile anaesthetics, a class of anaesthetics which evaporate easily
  • Volatile substance abuse, the abuse of household inhalants containing volatile compounds
  • Volatile oil, also known as essential oil, an oil derived from plants with aromatic compounds used in cosmetics and flavoring
  • Volatile acidity, a term used in winemaking to indicate an unacceptably high level of acid or vinegar and baking soda.

In computer science:

  • Volatile variables, variables that can be changed by an external process
  • Volatile memory, memory that lasts only while the power is on (and thus would be lost after a restart)

In geology:

  • Volatiles, the volatile compounds of magma (mostly water vapor) that affect the appearance and strength of volcanoes

Other uses:

See also

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