geology

noun

ge·​ol·​o·​gy jē-ˈä-lə-jē How to pronounce geology (audio)
plural geologies
1
a
: 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
geologist noun

Examples of geology in a Sentence

learning about the geology of Hawaii
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.
Perseverance's adventures have revealed some insights about the enigmatic Martian geology. Eric Lagatta, USA Today, 4 Apr. 2025 Yet, while Yellowstone National Park's bubbling hydrothermal wonders and dynamic geology captivate the imagination, they are seldom linked to Yosemite National Park's towering sequoias and sheer granite cliffs. Evie Carrick, Travel + Leisure, 25 Mar. 2025 His work has appeared in publications including Science News, Science, Nature, and Scientific American. paleontology ecology geology 1 free article left Want More? Paul Smaglik, Discover Magazine, 12 Mar. 2025 Further research combining mathematical modeling with observations of Venus's surface will help provide a better understanding of the planet's geology, the researchers said. Samantha Mathewson, Space.com, 4 Apr. 2025 See All Example Sentences for geology

Word History

Etymology

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

First Known Use

1735, in the meaning defined at sense 1a

Time Traveler
The first known use of geology was in 1735

Browse Nearby Words

Cite this Entry

“Geology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geology. Accessed 30 Apr. 2025.

Kids Definition

geology

noun
ge·​ol·​o·​gy jē-ˈäl-ə-jē How to pronounce geology (audio)
plural geologies
1
a
: a science that deals with the history of the earth and its life especially as recorded in rocks
b
: a study of the features of a heavenly body (as the moon)
2
: the geologic features (as mountains or plains) of an area
geologic
ˌjē-ə-ˈläj-ik
adjective
or geological
-i-kəl
geologically
-i-k(ə-)lē
adverb
geologist noun

More from Merriam-Webster on geology

Last Updated: - Updated example sentences
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