geo·​chem·​is·​try | \ ˌjē-ō-ˈke-mə-strē How to pronounce geochemistry (audio) \

Definition of geochemistry

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

Keep scrolling for more

Other Words from geochemistry

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

Examples of geochemistry in a Sentence

Recent Examples on the Web Then, the sponges could have sparked the Cryogenian—from 640 to 710 million years ago—by altering the geochemistry of the oceans. Shi En Kim, Smithsonian Magazine, 28 July 2021 His admittedly idiosyncratic take on the topic of color ranges widely over art history, geochemistry, physics, neuroscience and global commerce. Alan Hirshfeld, WSJ, 25 June 2021 The researchers arrived at their hypothesis by looking at the region’s seismic activity, gas emissions, geochemistry and even measurements of gravity, reports Mindy Weisberger for Live Science. Alex Fox, Smithsonian Magazine, 9 Dec. 2020 If confirmed, the finding would point to either of two possibilities: bizarre and wholly unexpected geochemistry on a lifeless Venus or the presence of some form of aerial alien biology in the planet’s clement cloud decks. Leonard David, Scientific American, 23 Sep. 2020 The geochemistry of that frozen ash matched layers of rock fragments, called tephra, associated with an ancient eruption of Mt. Okmok. Kiona N. Smith, Ars Technica, 22 June 2020 MOSAiC aims to help fill such gaps by documenting solar radiation levels, plankton populations, geochemistry, clouds, and other factors. Eli Kintisch, Science | AAAS, 20 Aug. 2019 The geologists who reported the date last week, here at the Goldschmidt geochemistry conference, also point out a conspicuous coincidence: The impact came at the tail end of a planetwide deep freeze known as Snowball Earth. Eric Hand, Science | AAAS, 27 Aug. 2019 Several additional lines of evidence from geochemistry and geophysics support the magma ocean model, which is still being developed today. Erica Jawin, Scientific American, 2 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'geochemistry.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of geochemistry

1902, in the meaning defined at sense 1

Keep scrolling for more

Learn More About geochemistry

Time Traveler for geochemistry

Time Traveler

The first known use of geochemistry was in 1902

See more words from the same year

Dictionary Entries Near geochemistry

geochemical prospecting



See More Nearby Entries 

Statistics for geochemistry

Last Updated

25 Sep 2021

Cite this Entry

“Geochemistry.” Dictionary, Merriam-Webster, Accessed 18 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for geochemistry


geo·​chem·​is·​try | \ ˌjē-ō-ˈke-mə-strē How to pronounce geochemistry (audio) \

Kids Definition of geochemistry

: a science that deals with the chemical composition of and chemical changes in the earth's crust

More from Merriam-Webster on geochemistry

Nglish: Translation of geochemistry for Spanish Speakers Encyclopedia article about geochemistry


Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!