from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of, relating to, using, producing, or caused by heat.
  • adj. Intended or designed in such a way as to help retain body heat: thermal underwear.
  • n. A rising current of warm air.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.
  • adj. pertaining to heat or temperature.
  • adj. providing efficient insulation so as to keep the body warm.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of or pertaining to heat; warm; hot.
  • adj. caused by or affected by heat.
  • adj. designed to retain heat.

from The Century Dictionary and Cyclopedia

  • Of or pertaining to heat.
  • Of or pertaining to thermæ.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. caused by or designed to retain heat
  • adj. relating to or associated with heat
  • n. rising current of warm air
  • adj. of or relating to a hot spring


from Wiktionary, Creative Commons Attribution/Share-Alike License

From New Latin *thermalis, from Ancient Greek θέρμη (thermē, "heat").



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  • Ladies and Gentlemen, The Thermals! If this does anything for you, you should immediately listen to "No Culture Icons", from their first album, "More Parts Per Million" (the entirety of which was recorded for ten bucks, but it sounds like it cost at least $40). "Pillar of Salt" is great too, from their most recent record. If you can't tell, I have a giant crush on The Thermals.

    October 1, 2007