geological
adjective
geo·log·i·cal
ˌjē-ə-ˈlä-ji-kəl 
variants
or less commonly geologic
: of, relating to, or based on geology
Examples of geological in a Sentence
Recent Examples on the Web
These findings give scientists valuable insights into the timing and patterns of past ice ages on Mars, helping to refine models of the planet's geological and climatic evolution over millions of years.
—
Samantha Mathewson, Space.com, 14 Nov. 2025
Americium is especially attractive for long, slow, or distant missions with minimal power demands, such as probes studying geological processes on icy moons or deep-space instruments designed to drift through interstellar space for hundreds of years.
—Kaif Shaikh, Interesting Engineering, 14 Nov. 2025
Unlike most geological processes, which unfold over millions of years, rising and falling water levels happen relatively quickly.
—Jeffrey Kluger, Time, 12 Nov. 2025
Using geological equipment, scientists have successfully analyzed the natural vibrations of the saguaro cactuses, creating a new framework for scientists to study the internal structure of desert plants without needing to cut them open.
—John Leos, AZCentral.com, 10 Nov. 2025
As noted by Japan’s government and scientific organizations, the geological interplay in this region is responsible for frequent earthquakes and the potential for tsunamis, especially following strong undersea quakes.
—Hollie Silverman, MSNBC Newsweek, 10 Nov. 2025
Five years later, lawmakers designated Yucca Mountain, a 6,700-foot promontory about 100 miles northwest of Las Vegas, Nevada, as the nation’s sole geological repository.
—Bob Woods, CNBC, 9 Nov. 2025
Walking among the colorful, striped geological layers feels like stepping inside a giant painting made by nature itself.
—Karthika Gupta, Travel + Leisure, 7 Nov. 2025
Its water levels are falling at around 7 inches a day, according to Brazil’s geological service.
—Laura Paddison, CNN Money, 6 Nov. 2025
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Samantha Mathewson, Space.com, 14 Nov. 2025
Americium is especially attractive for long, slow, or distant missions with minimal power demands, such as probes studying geological processes on icy moons or deep-space instruments designed to drift through interstellar space for hundreds of years.
—Kaif Shaikh, Interesting Engineering, 14 Nov. 2025
Unlike most geological processes, which unfold over millions of years, rising and falling water levels happen relatively quickly.
—Jeffrey Kluger, Time, 12 Nov. 2025
Using geological equipment, scientists have successfully analyzed the natural vibrations of the saguaro cactuses, creating a new framework for scientists to study the internal structure of desert plants without needing to cut them open.
—John Leos, AZCentral.com, 10 Nov. 2025
As noted by Japan’s government and scientific organizations, the geological interplay in this region is responsible for frequent earthquakes and the potential for tsunamis, especially following strong undersea quakes.
—Hollie Silverman, MSNBC Newsweek, 10 Nov. 2025
Five years later, lawmakers designated Yucca Mountain, a 6,700-foot promontory about 100 miles northwest of Las Vegas, Nevada, as the nation’s sole geological repository.
—Bob Woods, CNBC, 9 Nov. 2025
Walking among the colorful, striped geological layers feels like stepping inside a giant painting made by nature itself.
—Karthika Gupta, Travel + Leisure, 7 Nov. 2025
Its water levels are falling at around 7 inches a day, according to Brazil’s geological service.
—Laura Paddison, CNN Money, 6 Nov. 2025
Cite this Entry
“Geological.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geological. Accessed 18 Nov. 2025.
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