thermal

  1. Noun.  (meteorology) A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.
  2. Adjective.  pertaining to heat or temperature.
  3. Adjective.  (context, fabric) providing efficient insulation so as to keep the body warm.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.