geochemistry

1 of 2

noun (1)

geo·​chem·​is·​try ˌjē-ō-ˈke-mə-strē How to pronounce geochemistry (audio)
1
: 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)
2
: the related chemical and geologic properties of a substance
geochemical
ˌjē-ō-ˈke-mi-kəl How to pronounce geochemistry (audio)
adjective
geochemically
ˌjē-ō-ˈke-mi-k(ə-)lē How to pronounce geochemistry (audio)
adverb
geochemist
ˌjē-ō-ˈke-mist How to pronounce geochemistry (audio)
noun

geochemist

2 of 2

noun (2)

geo·​chemist ¦jēō + How to pronounce geochemist (audio)
: a specialist in geochemistry

Examples of geochemistry in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
The new research — which will be presented this week at the Goldschmidt geochemistry conference in Prague — is centered on improving C02 sequestration. — Jack Knudson, Discover Magazine, 7 July 2025 Caltech professor of geochemistry Francois Tissot tested the soot and dust that accumulated on the inside window sills of four Caltech buildings in Pasadena a few miles south of the Eaton fire. — Steve Scauzillo, Daily News, 5 May 2025 Snape presented the findings at the world's premier geochemistry meeting, the Goldschmidt Conference in Prague held between July 6 and July 11. — Keith Cooper, Space.com, 17 July 2025 Using tools from bioinformatics and geochemistry, Lloyd, now at the University of Southern California, makes organisms visible that are doubly beyond our view — in terms of their microscopic size and their hard-to-reach locations. — Laura Poppick, Quanta Magazine, 20 Aug. 2025 See All Example Sentences for geochemistry

Word History

Etymology

Noun (2)

ge- + chemist

First Known Use

Noun (1)

1902, in the meaning defined at sense 1

Time Traveler
The first known use of geochemistry was in 1902

Rhymes for geochemistry

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Browse Nearby Words

geochemist
geochemistry
geochronic
See all Nearby Words

Cite this Entry

“Geochemistry.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geochemistry. Accessed 7 Jul. 2026.

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Kids Definition

geochemistry

noun
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
-ˈkem-i-kəl How to pronounce geochemistry (audio)
adjective
geochemist
-ˈkem-əst How to pronounce geochemistry (audio)
noun

More from Merriam-Webster on geochemistry

Nglish: Translation of geochemistry for Spanish Speakers

Britannica.com: Encyclopedia article about geochemistry

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