Geothermal meaning

-mĭk
Of or relating to the internal heat of the earth.
adjective
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The definition of geothermal is something related to the earth's internal heat.

A heating system that harnesses the heat energy produced by the earth underground is an example of a geothermal heating system.

adjective
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Relating to the internal heat of the Earth. The water of hot springs and geysers is heated by geothermal sources. &diamf3; 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.
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Having to do with the heat of the earth's interior.
adjective
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Pertaining to heat energy extracted from reservoirs in the earth's interior.
adjective
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Origin of geothermal

geo- +‎ thermal