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adjective geo·ther·mal \-ˈthər-məl\

Simple Definition of geothermal

  • : of, relating to, or using the natural heat produced inside the Earth; also : produced by such heat

Source: Merriam-Webster's Learner's Dictionary

Full Definition of geothermal

  1. :  of, relating to, or utilizing the heat of the earth's interior; also :  produced or permeated by such heat <geothermal steam> <geothermal regions>


play \-mə-lē\ adverb

Origin and Etymology of geothermal

International Scientific Vocabulary

First Known Use: 1875

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