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geotherm

British  
/ ˈdʒiːəʊˌθɜːm /

noun

  1. a line or surface within or on the earth connecting points of equal temperature

  2. the representation of such a line or surface on a map or diagram

"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

Example Sentences

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Reduced pressure shifts the geotherm to the right of the solidus, causing decompression melting.

From Textbooks • Jan. 1, 2017

Decompression melting, plus an addition of heat, shifts the geotherm across the solidus.

From Textbooks • Jan. 1, 2017

The dotted line may be assumed to be a geotherm having a temperature of viscosity.

From The Birth-Time of the World and Other Scientific Essays by Joly, John

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.