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
Recent Examples on the Web
Large hydrothermal explosions occur on an average of every 700 years, the USGS said.
—
Amanda Musa, CNN, 25 July 2024
After an exciting summer, with the park seeing a hydrothermal explosion at Biscuit Basin and Norris Geyser Basin, one of the park’s scientists also spotted the new hydrothermal feature.
—Monica Cull, Discover Magazine, 21 Mar. 2025
Waterfall showers and a saltwater flotation experience are highlights of the hydrothermal gardens at the new 50,000 square foot Kiolani Spa at Grand Wailea, a Waldorf Astoria Resort on Maui.
—Jen Murphy, Condé Nast Traveler, 20 Dec. 2024
On Earth, zircons from hydrothermal systems — which form when water is heated by subsurface volcanic activity like the upward flow of hot magma — have similar patterns to those found in Black Beauty.
—Ashley Strickland, CNN, 10 Dec. 2024
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Amanda Musa, CNN, 25 July 2024
After an exciting summer, with the park seeing a hydrothermal explosion at Biscuit Basin and Norris Geyser Basin, one of the park’s scientists also spotted the new hydrothermal feature.
—Monica Cull, Discover Magazine, 21 Mar. 2025
Waterfall showers and a saltwater flotation experience are highlights of the hydrothermal gardens at the new 50,000 square foot Kiolani Spa at Grand Wailea, a Waldorf Astoria Resort on Maui.
—Jen Murphy, Condé Nast Traveler, 20 Dec. 2024
On Earth, zircons from hydrothermal systems — which form when water is heated by subsurface volcanic activity like the upward flow of hot magma — have similar patterns to those found in Black Beauty.
—Ashley Strickland, CNN, 10 Dec. 2024
See All Example Sentences for hydrothermal
Cite this Entry
“Hydrothermal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrothermal. Accessed 24 May. 2025.
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