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Much like oil and gas, geothermal energy, which harnesses the planet’s molten core to make steam, had long been confined to the places where access came easy—the American West, where Yellowstone’s famous geysers hint at the heat below, or volcanic Iceland.—Alexander C. Kaufman, The Atlantic, 4 Apr. 2025 That’s the subtle magnetic force — generated by the planet’s molten metal core — that surrounds Earth, not unlike the force around a bar magnet.—Benji Jones, Vox, 1 Apr. 2025 The molten rock was contained within the park and wasn't threatening residential areas.—CBS News, 21 Mar. 2025 However, these formations can also arise from volcanic processes, such as the rapid cooling of molten rock droplets during an eruption, or from meteorite impacts, upon which vaporized rocks condense.—Sharmila Kuthunur, Space.com, 26 Mar. 2025 See All Example Sentences for molten
Word History
Etymology
Middle English, from past participle of melten to melt
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