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.
As for how, if that’s the case, new species arise to replace the lost, nowhere in his geology does Lyell offer an explanation. Lewis Hyde, Harpers Magazine, 18 June 2025 Melting Magma Heat drives geology, the rocky foundation upon which everything else, from volcanic activity and atmospheric chemistry to biology, is built. Robin Andrews, Wired News, 15 June 2025 Steve has a background in geology—the same as my father. Frederick Dreier, Outside Online, 15 June 2025 Flint’s characteristics are specific to the place and time of its formation in the earth’s geology. The Editors, JSTOR Daily, 5 June 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 27 Jun. 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

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