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.
Krul was later told, however, that Independence would be too far for geology students to travel from the S&T campus in Rolla, Missouri. Ilana Arougheti, Kansas City Star, 11 Feb. 2026 By utilizing Earth’s natural geology, the design achieves several breakthroughs. Aman Tripathi, Interesting Engineering, 11 Feb. 2026 Thanks in part to improvements in telescope design, astronomers began identifying thousands of nebulae and star clusters, in essence making the universe suddenly larger in the same way that advances in geology had made the earth suddenly older. Kathryn Schulz, New Yorker, 9 Feb. 2026 Venus is perpetually shrouded in dense clouds that block direct views of its surface, forcing scientists to rely on radar imagery to study the planet's geology. Sharmila Kuthunur, Space.com, 9 Feb. 2026 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 15 Feb. 2026.

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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