Spelling.School · How to spell

How to spell geothermal

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.

The part people get wrong

Often misspelled as geotermal or geathermal.

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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