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

  • adj. Of or relating to the internal heat of the earth.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. pertaining to heat energy extracted from reservoirs in the earth's interior

from The Century Dictionary and Cyclopedia

  • Geothermic.
  • n. A line connecting places having the same temperature at a given depth below the earth's surface. Geothermic degree.See degree.

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

  • adj. of or relating to the heat in the interior of the earth


Sorry, no etymologies found.


  • In fact, the word "geothermal" comes from the Greek words geo (Earth) and therme

  • Operating upon principles found in geothermal technology, this system is even more efficient than radiant flooring.

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  • I am so impressed with all the latest technology in geothermal energy-it makes so much sense using the natural resources under the earth for clean, efficient and renewable energy.

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  • ‘High prices and climate change are definitely creating a renaissance in geothermal interest’

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  • The Energy Report: Greg, in one of your articles, you call geothermal the "sleeping giant" of renewable energy. RSS Feed - Politics & Policy

  • "We believe that our short term geothermal exploration program, which is well funded with nearly US$11 million raised since August 2009 and US$10 million in matching grants, will go a long way towards attracting prospective joint venture partners and moving our project to feasibility."

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  • When I previously wrote a post on Jargon Watch: Geothermal vs Ground Source Heat Pump, suggesting that the use of the word geothermal to describe ground source heat pumps was inappropriate, it caused some controversy in comments, including my favourite ...


  • Since I'm a closet classicist, let's start by breaking down geothermal from the Greek,

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  • Alternative sources: I'm not sure which alternative sources you're referring to, but in every case I can gurantee you that any alternative method is going to either require burning something to make heat in order to make steam for driving a generator turbine, or it will use natural heat, such as geothermal, which is limited.


  • In short, geothermal power supplies would be enormously advantageous to Martian settlers.

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