geological

adjective

geo·​log·​i·​cal ˌjē-ə-ˈlä-ji-kəl How to pronounce geological (audio)
variants or less commonly geologic
: of, relating to, or based on geology
geologically adverb

Examples of geological in a Sentence

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.
Computer simulations showed that any methane on TRAPPIST-1e would be rapidly destroyed by intense ultraviolet radiation, surviving only about 200,000 years — not nearly long enough for geological processes to replenish it. Sharmila Kuthunur, Space.com, 26 Dec. 2025 The parallel tunnels facilitated geological investigation ahead of the main bore and provided workers with access to the site and equipment. Ameya Paleja, Interesting Engineering, 26 Dec. 2025 But if the geological plumbing is clogged, perhaps by silica minerals or rock debris, the pressure can build until the water explodes, vaporizing into steam and shooting boiling water, mud, rocks, and other debris into the air. Owen Clarke, Outside, 23 Dec. 2025 Long-standing geological evidence from Antarctica and elsewhere around the world shows that as ice melts and flows off the land, the land itself rises because the ice no longer presses it down. Keiji Horikawa, The Conversation, 22 Dec. 2025 The Smackover Formation is a lithium-rich geological area spanning through east Texas, south Arkansas and into western Florida. Arkansas Online, 16 Dec. 2025 The resolution goes on to request, in part, that The Boring Company participate in a formal public briefing before the whole council and release all environmental, geological, safety and fiscal studies for independent review. Austin Hornbostel, Nashville Tennessean, 10 Dec. 2025 Swissaid blamed the absence of industrial mining on South Sudan’s history of civil war and conflict since 2013, and the lack of geological mapping needed to properly organize mineral exploration. Alexander Onukwue, semafor.com, 8 Dec. 2025 For example, the Ross Maxwell Scenic Drive has stunning views of volcanic formations and informative signs explaining the area’s geological history. Carrie Dennis, Travel + Leisure, 4 Dec. 2025

Word History

Etymology

see geology

First Known Use

circa 1723, in the meaning defined above

Time Traveler
The first known use of geological was circa 1723

Browse Nearby Words

Cite this Entry

“Geological.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geological. Accessed 30 Dec. 2025.

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