ge·​ol·​o·​gy | \ jē-ˈä-lə-jē How to pronounce geology (audio) \
plural geologies

Definition of geology

1a : a science that deals with the history of the earth and its life especially as recorded in rocks
b : a study of the solid matter of a celestial body (such as the moon)
2 : geologic features the geology of Arizona
3 : a treatise on geology

Other Words from geology

geologist \ jē-​ˈä-​lə-​jist How to pronounce geology (audio) \ noun

Examples of geology in a Sentence

learning about the geology of Hawaii
Recent Examples on the Web McMenamin, a professor of geology at Mount Holyoke College in Massachusetts, estimated the Jurassic fossil to be between 145 million and 200 million years old, Newsweek reported. Dave Kindy,, 30 July 2022 Bristling with cutter teeth, the head can cut through a variety of geology. Arkansas Online, 17 July 2022 Its geology is rarely more naked than along the fault line, which stretches from the Reykjanes Peninsula outside of the country’s capital, Reykjavik, in the southwest to the northeast near the Myvatn baths, nearly halfway around the island. New York Times, 3 June 2022 The second, less common outside of geology, refers to areas that have a history of landslides. Kendra Pierre-louis, The Atlantic, 29 Mar. 2022 Join environmental educator Roland Begin for a walk to learn about the unique geology of Portland’s West Hills. oregonlive, 15 July 2022 Like the geology of my new home, I was formed in a space where differences converged. David Wright Faladé, The New Yorker, 4 July 2022 The geology of the lake is fascinating, as there are underwater geysers, hot springs, and fumaroles. Ashley Dunne, Sunset Magazine, 24 June 2022 Researchers also studied the geology of the area and how the age and types of wells and the proximity of septic systems and farms impacted the well water serving families throughout the region. Laura Schulte, Milwaukee Journal Sentinel, 20 May 2022 See More

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

First Known Use of geology

1735, in the meaning defined at sense 1a

History and Etymology for geology

New Latin geologia, from ge- + -logia -logy

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Time Traveler for geology

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The first known use of geology was in 1735

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Last Updated

2 Aug 2022

Cite this Entry

“Geology.” Dictionary, Merriam-Webster, Accessed 13 Aug. 2022.

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More Definitions for geology


ge·​ol·​o·​gy | \ jē-ˈä-lə-jē How to pronounce geology (audio) \

Kids Definition of geology

1 : a science that deals with the history of the earth and its life especially as recorded in rocks
2 : the geologic features (as mountains or plains) of an area

More from Merriam-Webster on geology

Nglish: Translation of geology for Spanish Speakers


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