[ hahy-druh-thur-muh l ]
/ ˌhaɪ drəˈθɜr məl /

adjective Geology.

noting or pertaining to the action of hot, aqueous solutions or gases within or on the surface of the earth.

Origin of hydrothermal

First recorded in 1840–50; hydro-1 + thermal

OTHER WORDS FROM hydrothermal

hy·dro·ther·mal·ly, adverb
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Examples from the Web for hydrothermal

British Dictionary definitions for hydrothermal

/ (ˌhaɪdrəʊˈθɜːməl) /


of or relating to the action of water under conditions of high temperature, esp in forming rocks and minerals

Derived forms of hydrothermal

hydrothermally, 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

Science definitions for hydrothermal

[ hī′drə-thûrməl ]

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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