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geothermal

American  
[jee-oh-thur-muhl] / ˌdʒi oʊˈθɜr məl /
Or geothermic

adjective

  1. of or relating to the internal heat of the earth.


geothermal British  
/ ˌdʒiːəʊˈθɜːməl /

adjective

  1. of or relating to the heat in the interior of the earth

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

geothermal Scientific  
/ jē′ō-thûrməl /
  1. Relating to the internal heat of the Earth. The water of hot springs and geysers is heated by geothermal sources.

  2. Geothermal energy is power generated from natural steam, hot water, hot rocks, or lava in the Earth's crust. In general, geothermal power is produced by pumping water into cracks in the Earth's crust and then conveying the heated water or steam back to the surface so that its heat can be extracted through a heat exchanger, or its pressure can be used to drive turbines.


Etymology

Origin of geothermal

First recorded in 1870–75; geo- + thermal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The company has said it is in talks with data-center customers to sign power-purchase agreements at some of its existing geothermal facilities at higher prices once contracts expire.

From The Wall Street Journal

It launched a new battery-storage project, expanded capacity at the Geysers, a massive geothermal power plant in California, and improved its hedging.

From The Wall Street Journal

This is also where policymakers can make the biggest difference: providing the money and incentives to develop or commercialize immature technologies such as carbon capture and storage, advanced nuclear power, geothermal energy and hydrogen.

From The Wall Street Journal

In a recent report, Min argued the state will also need more “clean, firm” power — resources that can operate around the clock — such as geothermal energy or natural-gas plants with carbon capture.

From Los Angeles Times

Fervo, the startup pioneering the use of fracking techniques in geothermal power, has privately raised $462 million from investors including Google to fund its projects.

From The Wall Street Journal