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.
The Patagonian Paleontology Trail The first stops on the trail are Bryn Gwyn’s Plateau and Ameghino Petrified Forest, sites of fossils and impressive geological formations, as well as the soaring cliffs near the Chubut River. Laurie Werner, Forbes.com, 30 June 2025 This holds true not just for national history and global history, but also geological history. Laura Poppick, Rolling Stone, 30 June 2025 Espiritu Santo is a geological layer cake carved with countless small anchorages, beloved by sailors and fishing enthusiasts. The New York Times News Service Syndicate, San Diego Union-Tribune, 29 June 2025 Very little is definitive when dealing with rocks and minerals that have complex geological histories spanning more than 4 billion years, according to Jesse Reimink, the Rudy L. Slingerland Early Career Professor of Geoscience at Penn State University. Katie Hunt, CNN Money, 27 June 2025 The geological story of time is told through the ancient rock formations, from when the landscape was underwater during the lower Triassic Period to many years of wind and rock erosion that shaped the striking formations and strata. Kathleen Wong, USA Today, 27 June 2025 Tread through a landscape of craggy limestone and acacia trees steeped in ancient geological history and Aboriginal mythology, with the bright blue ocean in the distance. Chloe Berge, Outside Online, 17 June 2025 To eliminate this possibility, researchers can cross-check these tree-ring results with evidence locked away in other geological sources such as ice cores and sediment from the ocean floor. Robert Lea, Space.com, 13 June 2025 Some of that geological awe has now been added to my childhood delight in butterflies. Lewis Hyde, Harpers Magazine, 18 June 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 6 Jul. 2025.

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