First Known Use: 1875
Dictionary
geothermal
adjective geo·ther·mal \-ˈthər-məl\
: of, relating to, or using the natural heat produced inside the Earth; also : produced by such heat
Full Definition of GEOTHERMAL
: of, relating to, or utilizing the heat of the earth's interior; also : produced or permeated by such heat <geothermal steam> <geothermal regions>
— geo·ther·mal·ly \-mə-lē\ adverb
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Origin of GEOTHERMAL
International Scientific Vocabulary
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