hypothermal

[ hahy-puh-thur-muh l ]
/ ˌhaɪ pəˈθɜr məl /

adjective

lukewarm; tepid.
characterized by subnormal body temperature.
Geology. (of mineral deposits) formed at great depths and high temperatures.

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Origin of hypothermal

First recorded in 1895–1900; hypo- + thermal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for hypothermal

hypothermal
/ (ˌhaɪpəʊˈθɜːməl) /

adjective

Also: hypothermic of, relating to, or characterized by hypothermia
(of rocks and minerals) formed at great depth under conditions of high temperature
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