ge·​ol·​o·​gy | \jē-ˈä-lə-jē \
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

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Other Words from geology

geologist \jē-​ˈä-​lə-​jist \ noun

Examples of geology in a Sentence

learning about the geology of Hawaii

Recent Examples on the Web

Many attribute its signature style to the complex geology of the land. Jay Mcinerney, Town & Country, "A New Era Begins at Château Lafite as Baron de Rothschild Hands Leadership Over to His Daughter," 13 Aug. 2018 BepiColombo is Europe's first mission to the planet, and it is intended as a follow-on to NASA's Messenger spacecraft that spent a period from 2011 to 2015 at Mercury and studied its chemistry, geology, and magnetic field. Eric Berger, Ars Technica, "Two orbiters begin their long journey to Mercury Friday night," 19 Oct. 2018 As part of the SUBSEA project, the robots, named Hercules and Argus, will study the biology, geology and chemistry of the region. Chris Ciaccia, Fox News, "NASA is using underwater robots to explore the deep-sea off the Hawaiian coast," 29 Aug. 2018 The mission's landing site is deliberately chosen to be as bland as possible in terms of both geology and weather. Emily Lakdawalla, Popular Mechanics, "Meet InSight: The Mission To Measure Marsquakes and Unlock the Red Planet," 30 Apr. 2018 Her achievement was to synthesize this work through the framework of two seemingly disparate fields: geology and neurology. Leila Mcneill, Smithsonian, "The Woman Who Shaped the Study of Fossil Brains," 1 Mar. 2018 Senate Bill 654 creates an Environmental Science Advisory Board, made up of nine individuals appointed by the governor with expertise in engineering, chemistry, geology, or other sciences or disciplines. Keith Matheny, Detroit Free Press, "Gov. Rick Snyder signs controversial 'polluter panels' bill," 29 June 2018 Admission to Springs Preserve includes access to the neighboring Nevada State Museum, which delves into the state’s geology, plants, and native creatures. Kim Windyka, Daily Intelligencer, "The 9 Best Offbeat Museums to Visit in Las Vegas," 16 June 2018 The area has a naturally fractured geology that's more varied than shale, said Jud Walker, president at EnerVest Operating Co. Alex Nussbaum, Houston Chronicle, "Aging oil play getting new life," 15 June 2018

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.

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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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Statistics for geology

Last Updated

16 Dec 2018

Look-up Popularity

Time Traveler for geology

The first known use of geology was in 1735

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English Language Learners Definition of geology

: a science that studies rocks, layers of soil, etc., in order to learn about the history of the Earth and its life

: the rocks, land, processes of land formation, etc., of a particular area


ge·​ol·​o·​gy | \jē-ˈä-lə-jē \

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

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More from Merriam-Webster on geology

Rhyming Dictionary: Words that rhyme with geology

Spanish Central: Translation of geology

Nglish: Translation of geology for Spanish Speakers

Comments on geology

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to make faulty or ineffective

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