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
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According to the team, the process mimics the geological conditions that form fossil fuels, compressing wet biomass at high temperatures and pressures to produce biocrude. Melissa Fleur Afshar, MSNBC Newsweek, 31 Oct. 2025 Towns stretching out northwest from Pamukkale along a geological fault line tap into increasingly hotter supplies of steam and water surging up from underground. Barry Neild, CNN Money, 27 Oct. 2025 Although further studies – such as carbon dating – are needed to determine its exact age, the team estimated the crater’s formation period by analyzing its geological structure and the extent of erosion. Bojan Stojkovski, Interesting Engineering, 25 Oct. 2025 From the dramatic depths of Tycho and Copernicus craters to the smooth plains of Mare Tranquillitatis, each lunar landmark holds clues about the moon's violent past and geological evolution. Kenna Hughes-Castleberry, Space.com, 25 Oct. 2025 That’s in part because excessive regulation keeps the potential locked underground, deterring investment in innovative mining solutions, processing plants, magnet factories and the skilled workforce needed to turn our geological abundance into economic value. Veronique De Rugy, Oc Register, 23 Oct. 2025 Despite decades of geological study, eastern Greenland’s Jameson Land Basin remains completely undrilled until potentially next summer. Jordan Blum, Fortune, 22 Oct. 2025 Scholars believe that Aboriginal tales conveying perceptive observations and understanding of natural evidence are some of the most ancient geomyths in the world, helping scientists to understand seismic, volcanic, and other geological events in Australia’s remote past. Literary Hub, 22 Oct. 2025 The steelmaker has two sites in Michigan and Minnesota where geological surveys have found indications of rare earths, Goncalves said in a statement on Cleveland-Cliffs’ third-quarter earnings. Spencer Kimball, CNBC, 20 Oct. 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 4 Nov. 2025.

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