hydrothermal

adjective

hy·​dro·​ther·​mal ˌhī-drə-ˈthər-məl How to pronounce hydrothermal (audio)
: of or relating to hot water
used especially of the formation of minerals by hot solutions rising from a cooling magma
hydrothermally adverb

Examples of hydrothermal in a Sentence

Recent Examples on the Web
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In 2003, a similar hydrothermal feature sprang up on the other side of the rhyolite flow near Nymph Lake. Monica Cull, Discover Magazine, 4 July 2025 The same geyser that erupted last summer in a hydrothermal explosion in Yellowstone National Park was recorded erupting again, video shows. Brooke Baitinger, Sacbee.com, 4 June 2025 On May 31, 2025, a webcam in Yellowstone National Park detected a small explosion in the Biscuit Basin Area—the same zone that suffered an unexpectedly destructive hydrothermal eruption less than a year ago. Owen Clarke, Outside Online, 6 June 2025 Possibility of Life on Other Planets Their research also showed that during the time the hydrothermal system functioned, the type of marine life mainly comprised of plankton species adapted to high-nutrient environments. Sean Mowbray, Discover Magazine, 23 May 2025 See All Example Sentences for hydrothermal

Word History

Etymology

International Scientific Vocabulary

First Known Use

1849, in the meaning defined above

Time Traveler
The first known use of hydrothermal was in 1849

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Cite this Entry

“Hydrothermal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrothermal. Accessed 11 Jul. 2025.

Medical Definition

hydrothermal

adjective
hy·​dro·​ther·​mal ˌhī-drə-ˈthər-məl How to pronounce hydrothermal (audio)
: of or relating to hot water
hydrothermally adverb
Last Updated: - Updated example sentences
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