geothermal

or ge·o·ther·mic

[ jee-oh-thur-muhl ]

adjective

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

geothermal

/ ˌdʒiːəʊˈθɜːməl /

adjective

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

geothermal

/ jē′ō-thûr′məl /

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.

Word History and Origins

Origin of geothermal¹

First recorded in 1870–75; geo- + thermal

Example Sentences

In 2021, oil and gas majors are poised to make the first major geothermal investments in more than 30 years, say industry experts and energy executives, as financial returns on fossil fuels tank.

From Quartz

On Earth, hot water and steam carry this geothermal energy to the surface, and it’s been harnessed for heating and energy production in Iceland, the United States, and a number of other countries.

From Popular-Science

Just me, my boyfriend, and a fury of geothermal activity vibrating up from the earth.

From Outside Online

Made up of layers of microbes, mats have been found in geothermal areas all over the world, including in Yellowstone National Park, the Garga hot spring in southern Russia and Lassen — home to Bumpass Hell.

From Science News

They can also move heat between deep geothermal wells and the circulating water.

From Singularity Hub 

Darren really wanted to capture the moss, and the geothermal quality of it.

From The Daily Beast

Dr. Al Sabawi is chairman of MENA Geothermal, UCI, TABO, and Ahlia Insurance.

From The Daily Beast

Jewell also approved a 70-megawatt geothermal plant on federal land in Nevada.

From The Daily Beast

I read you were filming in Iceland, which relies on a huge natural geothermal resource.

From The Daily Beast

And in 25 years, 15 percent of our energy in the U.S. could easily be geothermal.

From The Daily Beast

The internal heat associated with some young volcanic systems has been harnessed to produce geothermal energy.

From Project Gutenberg