geology
noun
ge·ol·o·gy
jē-ˈä-lə-jē 
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
Examples of geology in a Sentence
learning about the geology of Hawaii
Recent Examples on the Web
After nearly three decades of research, China selected the remote Beishan region of Gansu province, known for its ancient and solid geology.
—
Bojan Stojkovski, Interesting Engineering, 27 Dec. 2025
Scientists believe the geology of Mars may hold valuable clues about past ancient life, and so the robotic vehicles, controlled remotely from Earth, have slowly navigated the rocky terrain to scoop up and collect intriguing samples.
—Eric Lagatta, USA Today, 16 Dec. 2025
An independent environmental review commissioned by Elon Musk's The Boring Company found the project would not impact Nashville's geology, endangered species, air quality or other key resources.
—Stuart Dyos, Nashville Tennessean, 16 Dec. 2025
London is home to Fresnillo and Hochschild Mining , both of which are strong performers this year, Mould noted, but cautioned that invested in mining stocks requires research into the company's financial strength in order to asses risks such as geology, weather and political unrest.
—Chloe Taylor, CNBC, 11 Dec. 2025
See All Example Sentences for geology
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Bojan Stojkovski, Interesting Engineering, 27 Dec. 2025
Scientists believe the geology of Mars may hold valuable clues about past ancient life, and so the robotic vehicles, controlled remotely from Earth, have slowly navigated the rocky terrain to scoop up and collect intriguing samples.
—Eric Lagatta, USA Today, 16 Dec. 2025
An independent environmental review commissioned by Elon Musk's The Boring Company found the project would not impact Nashville's geology, endangered species, air quality or other key resources.
—Stuart Dyos, Nashville Tennessean, 16 Dec. 2025
London is home to Fresnillo and Hochschild Mining , both of which are strong performers this year, Mould noted, but cautioned that invested in mining stocks requires research into the company's financial strength in order to asses risks such as geology, weather and political unrest.
—Chloe Taylor, CNBC, 11 Dec. 2025
See All Example Sentences for geology
Cite this Entry
“Geology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geology. Accessed 31 Dec. 2025.
Copy CitationKids Definition
geology
noun
ge·ol·o·gy
jē-ˈäl-ə-jē
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
adjective
ˌjē-ə-ˈläj-ik
or geological
-i-kəl
geologically
adverb
-i-k(ə-)lē
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