hydrothermal
adjective
hy·dro·ther·mal
ˌhī-drə-ˈthər-məl 
: of or relating to hot water
—used especially of the formation of minerals by hot solutions rising from a cooling magma
Examples of hydrothermal in a Sentence
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An imaging technique that produces more precise maps of the large reservoirs of magma under the park shows large pods of deep magma leading up to more shallow ones closer to the surface in the northeast, which tie into the park’s famed hydrothermal systems.
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Elizabeth Weise, USA TODAY, 1 Jan. 2025
Some of the rocks the rover has encountered may have been formed by hydrothermal systems, Horgan said.
—Ashley Strickland, CNN, 10 Dec. 2024
While rare, hydrothermal explosions can result in injuries or death to humans and animals.
—Michael Cappetta, Travel + Leisure, 19 July 2025
These subtle noises suggest that the new pool was born last Christmas and that a series of little hydrothermal explosions that weren’t strong enough to shake the ground initiated the structure.
—Stephanie Pappas, Scientific American, 17 July 2025
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Elizabeth Weise, USA TODAY, 1 Jan. 2025
Some of the rocks the rover has encountered may have been formed by hydrothermal systems, Horgan said.
—Ashley Strickland, CNN, 10 Dec. 2024
While rare, hydrothermal explosions can result in injuries or death to humans and animals.
—Michael Cappetta, Travel + Leisure, 19 July 2025
These subtle noises suggest that the new pool was born last Christmas and that a series of little hydrothermal explosions that weren’t strong enough to shake the ground initiated the structure.
—Stephanie Pappas, Scientific American, 17 July 2025
See All Example Sentences for hydrothermal
Cite this Entry
“Hydrothermal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrothermal. Accessed 6 Aug. 2025.
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