follow Dictionary.com

What is the X in X-mas?

hydrothermal

[hahy-druh-thur-muh l] /ˌhaɪ drəˈθɜr məl/
adjective, Geology
1.
noting or pertaining to the action of hot, aqueous solutions or gases within or on the surface of the earth.
Origin
1840-1850
1840-50; hydro-1 + thermal
Related forms
hydrothermally, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for hydro-thermal

hydrothermal

/ˌhaɪdrəʊˈθɜːməl/
adjective
1.
of or relating to the action of water under conditions of high temperature, esp in forming rocks and minerals
Derived Forms
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
Cite This Source
Word Origin and History for hydro-thermal

hydrothermal

adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
hydro-thermal in Science
hydrothermal
  (hī'drə-thûr'məl)   
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for hydrothermal

Few English speakers likely know this word

Word Value for hydro

12
10
Scrabble Words With Friends

Quotes with hydro-thermal