geothermal

or ge·o·ther·mic

[ jee-oh-thur-muh l ]

/ ˌdʒi oʊˈθɜr məl /

adjective

of or relating to the internal heat of the earth.

Nearby words

geotaxis, geotechnical, geotectonic, geotextile, geotherm, geothermal, geothermal energy, geothermal gradient, geothermal power, geotrichosis, geotropic

Origin of geothermal

First recorded in 1870–75; geo- + thermal

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for geothermal

Darren really wanted to capture the moss, and the geothermal quality of it.
‘Noah’ is a Global Warming Epic About the Battle Between Religion and Science, Says Cinematographer|Marlow Stern|March 27, 2014|DAILY BEAST
Jewell also approved a 70-megawatt geothermal plant on federal land in Nevada.
Interior Department Announces Plans for Renewable Energy Projects on Federal Lands|Miranda Green|June 7, 2013|DAILY BEAST
And in 25 years, 15 percent of our energy in the U.S. could easily be geothermal.
Revenge of the Electric Car|Matthew Dakotah|October 23, 2009|DAILY BEAST
Invest in Clean Energy: Invests $190 billion into clean energy like wind, solar, geothermal and advanced coal technology.
Palin vs. the Planet|Edward Markey|July 17, 2009|DAILY BEAST

Here are the words she chose to omit from her op-ed: wind, solar, biomass, geothermal, efficiency, smart grid, and fuel economy.
Palin vs. the Planet|Edward Markey|July 17, 2009|DAILY BEAST

British Dictionary definitions for geothermal

geothermal

geothermic

/ (ˌdʒiːəʊˈθɜːməl) /

adjective

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

Word Origin and History for geothermal

geothermal

adj.

1875, from geo- + thermal.

Science definitions for geothermal

geothermal

[ jē′ō-thûr′məl ]

Relating to the internal heat of the Earth. The water of hot springs and geysers is heated by geothermal sources.♦ 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.