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

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Other Words from geology

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

Examples of geology in a Sentence

learning about the geology of Hawaii

Recent Examples on the Web

Some of these adventures take 14 days or longer to truly immerse participants in the history, geology, and wildlife of the region. Peter Reese, Popular Mechanics, "Five Things to Know Before Running a Wild River," 11 Aug. 2017 But the isotope analysis alone can only point to a broad area that has similar geology. Kiona N. Smith, Ars Technica, "People buried at Stonehenge may have come from as far away as Wales," 3 Aug. 2018 The lander will set down in the oldest and deepest impact basin on the Moon, the South Pole–Aitken basin, and will focus on lunar geology. Eric Berger, Ars Technica, "Here’s why China’s launch to the far side of the Moon is a big deal," 10 Dec. 2018 Following the rescue meant coming to appreciate cave geology, the dangers of cave diving, the risks of running out of oxygen in a cave, and the utility of sedatives in an emergency. Brian Resnick, Vox, "10 science stories in 2018 that made us go, “Whoa, that’s awesome”," 18 Dec. 2018 The richness of the red lets the woman hold her own visually with not just the canyon’s delicate pastels but even its flabbergasting geology. Mark Feeney,, "At Cambridge Public Library, photos in color, in the stacks, in Cambridge," 8 May 2018 Its geology and politics are known to the industry. Vinod Sreeharsha And Clifford Krauss, New York Times, "Brazilian Auction Draws Oil Companies Back to Offshore Drilling," 29 Mar. 2018 Mars 2020, scheduled to launch from Cape Canaveral in July of that year, has four primary science objectives: determine whether life ever arose on Mars, characterize the planet's climate, study its geology, and prepare for human exploration. Jay Bennett, Popular Mechanics, "NASA's Next Great Mars Rover Will Search for Martians and Prepare for Humans to Follow," 17 Jan. 2018 In it, the Major stepped away from the fields of geology and out of academic realms to address a topic that pressed right to the heart of American democracy. Johnforristerross, Longreads, "Taming the Great American Desert," 2 July 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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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 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

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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

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