Definition of "geothermally" [geothermally]

• By geothermal means, especially by means of geothermal energy (adverb)

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• "Greybeard: “Their geothermally powered civilization has developed drilling machines which turn rock to dust by inhibiting the weak nuclear force.”"
• "Their geothermally powered civilization has developed drilling machines which turn rock to dust by inhibiting the weak nuclear force."
• "Regina almost had its own geothermally heated building."