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.
Part of the Hong Kong UNESCO Global Geopark, this trail is a geological wonderland, boasting hexagonal rock columns and secret caves that wouldn't look out of place in a dinosaur's backyard. Condé Nast Traveler, 22 Feb. 2026 Unlike many geological formations, the Adavale Basin leaves no obvious trace at the surface. Rupendra Brahambhatt, Interesting Engineering, 22 Feb. 2026 Using radiocarbon dating, experts estimate these geological time capsules date back to around 2,000 years ago. Andrew Paul, Popular Science, 19 Feb. 2026 These geological formations are abundant in parts of Iowa that sit on top of the Midcontinent Rift — an event from more than one billion years ago when North America attempted to split apart and large amounts of lava seeped from the earth. Cami Koons, Iowa Capital Dispatch, 17 Feb. 2026 Han, who declined to disclose the value of the agreement with Kinshasa, said findings from its AI analysis of historical surveys would be shared with DR Congo’s national geological service. Alexis Akwagyiram, semafor.com, 13 Feb. 2026 But only a small portion of CO2 can be reused, and Broin said the industry still needs access to a pipeline in states like Iowa that lack the geological capability to sequester carbon dioxide underground. Donnelle Eller, Des Moines Register, 13 Feb. 2026 This geological anomaly led to the formation of rare minerals high in sodium and iron — such as arfvedsonite, aegirine and aenigmatite — that typically do not occur in granite. Asuka Koda, CNN Money, 11 Feb. 2026 The geological feature is often referred to as a lava tube, and is common around volcanic areas of Earth. Eric Lagatta, USA Today, 11 Feb. 2026

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 27 Feb. 2026.

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