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hydrothermal

[hahy-druh-thur-muh l]
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adjective Geology.
  1. noting or pertaining to the action of hot, aqueous solutions or gases within or on the surface of the earth.
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Origin of hydrothermal

First recorded in 1840–50; hydro-1 + thermal
Related formshy·dro·ther·mal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for hydrothermal

hydrothermal

adjective
  1. of or relating to the action of water under conditions of high temperature, esp in forming rocks and minerals
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Derived Formshydrothermally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for hydrothermal

adj.

1852, from hydro- + thermal (adj.); 1855 in geology.

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Online Etymology Dictionary, © 2010 Douglas Harper

hydrothermal in Science

hydrothermal

[hī′drə-thûrməl]
  1. Relating to or produced by hot water, especially water heated underground by the Earth's internal heat.Hydrothermal energy is power that is generated using the Earth's hot water.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.