mudstone

noun

mud·​stone ˈməd-ˌstōn How to pronounce mudstone (audio)
: an indurated shale produced by the consolidation of mud

Examples of mudstone 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.
Buried inside a slab of ancient mudstone in what was once an inlet leading into a lake bounded by Mars’ Jezero Crater, NASA’s Perseverance rover’s sample number 25 is potentially a Martian astrobiological game-changer. Bruce Dorminey, Forbes, 17 Aug. 2024 Curiosity has already found organic deposits trapped in mudstone that once contained organic molecules. Harriet Marsden, theweek, 24 July 2024 According to the listing in the Portable Antiquities Scheme’s database, the rock is probably mudstone or shale. Sarah Kuta, Smithsonian Magazine, 15 May 2024 This is a land of limestone, sandstone, siltstone, and mudstone — basic sedimentary rock. Discover Magazine, 9 Feb. 2024 See all Example Sentences for mudstone 

Word History

First Known Use

circa 1736, in the meaning defined above

Time Traveler
The first known use of mudstone was circa 1736

Dictionary Entries Near mudstone

Cite this Entry

“Mudstone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mudstone. Accessed 22 Dec. 2024.

More from Merriam-Webster on mudstone

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!