How to spell geothermal

Geothermal is spelled G-E-O-T-H-E-R-M-A-L.

hear itge·o·ther·mal/,dʒioʊ'θɜrməl/adjectiveSchwa and roots

What it means: Relating to heat from the earth's interior.

In a sentence: The hot springs are warm because of geothermal heat from the earth.

Same family: thermal, thermometer, geology, geophysics, geothermal energy. If you can spell one, the shared part carries to the others.

Where it comes from: “Geothermal” comes from two Greek roots: geo meaning “earth” and thermē meaning “heat.” The word literally means “earth-heat,” a perfect description of energy that comes from the hot interior of our planet.

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