geo·​chem·​is·​try ˌjē-ō-ˈke-mə-strē How to pronounce geochemistry (audio)
: a science that deals with the chemical composition of and chemical changes in the solid matter of the earth or a celestial body (such as the moon)
: the related chemical and geologic properties of a substance
geochemical adjective
geochemically adverb
geochemist noun

Examples of geochemistry in a Sentence

Recent Examples on the Web The model is being geolocated to the current surface and geology and geochemistry and will then be interpreted to strengthen both shallow and deep targeting. Kansas City Star, 10 Apr. 2024 This more modern drill information has been combined with historical and modern soil geochemistry and geophysics (Figure 2) to vector towards a potential porphyry target located beneath North Quartz in a road accessible target area covering at least ~ 5.0 Miami Herald, 2 Apr. 2024 Methane detected on their surfaces suggests hot geochemistry in their rocky cores. Jamie Carter, Forbes, 16 Feb. 2024 In essence, natural systems operate on the free energy of the sun, which interacts with the geochemistry of the earth to sustain productive, regenerative biological systems. William McDonough, Scientific American, 1 July 2017 The geochemistry of barnacle shells provides clues as to where the barnacles have traveled. Tim Newcomb, Popular Mechanics, 1 Sep. 2023 Peslier studies the geochemistry of Earth’s mantle and the other terrestrial planets, including the hydrogen trapped within minerals. Nola Taylor Redd, Discover Magazine, 1 Nov. 2019 Within the context of their model framework, Sujoy Mukhopadhyay, a geochemistry professor at the University of California, Davis, agrees that the core could be leaking helium-3 into the mantle. Connor Lynch, Discover Magazine, 20 Apr. 2022 Still, lead author David L. Valentine, a professor of microbial geochemistry at UC Santa Barbara, said the findings temper hopes that microorganisms detected by scientists in the gulf have eaten up most of the oil there, as other scientists had recently suggested. Andrew Moseman, Discover Magazine, 20 Sep. 2010

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'geochemistry.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1902, in the meaning defined at sense 1

Time Traveler
The first known use of geochemistry was in 1902

Dictionary Entries Near geochemistry

Cite this Entry

“Geochemistry.” Dictionary, Merriam-Webster, Accessed 24 May. 2024.

Kids Definition


geo·​chem·​is·​try ˈjē-ō-ˈkem-ə-strē How to pronounce geochemistry (audio)
: a science that deals with the chemical composition of and chemical changes in the solid material of the earth or of another body (as the moon)
geochemical adjective
geochemist noun

More from Merriam-Webster on geochemistry

Last Updated: - Updated example sentences
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