sed·​i·​men·​ta·​ry | \ ˌse-də-ˈmen-tə-rē How to pronounce sedimentary (audio) , -ˈmen-trē \

Definition of sedimentary

1 : of, relating to, or containing sediment sedimentary deposits
2 : formed by or from deposits of sediment sedimentary rock

Examples of sedimentary in a Sentence

Recent Examples on the Web The Mars rover's current focus is drilling cores and examing the sedimentary rocks around the delta area. Megan Marples, CNN, 9 June 2022 These conclusions come from chemical patterns in a group of sedimentary rocks, called the Murray formation, that Curiosity sampled along its path up Mount Sharp. Lee Billings, Scientific American, 1 Nov. 2021 The rocks in the delta are most likely sedimentary, trapping and preserving precious layers of silt from the river that once flowed into the crater's lake. Ashley Strickland, CNN, 15 Dec. 2021 The younger rock layers on top are mostly sedimentary, evidence of long-ago, shallow inland seas. Washington Post, 14 Oct. 2021 The girl’s molar was embedded in sedimentary rock called breccia on a cave wall also containing bone fragments and teeth from animals including ancient rhinos and elephants. Reuters, NBC News, 18 May 2022 It’s in the foothills in an area called Greenheugh Pediment and able to see different sedimentary layers shaped by water billions of years ago. Jamie Carter, Forbes, 16 May 2022 Two different specimens were found in 2012 in southern Mendoza in the Plottier Formation, a group of sedimentary rocks containing the remains of sauropods, theropods, turtles, crocodiles and pterosaurs, Ortiz David said. Megan Marples, CNN, 29 May 2022 Further, as the researchers note, layers of light-colored volcanic ash can be found buried in the sedimentary rock. Joshua Hawkins, BGR, 12 May 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sedimentary.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sedimentary

1830, in the meaning defined at sense 1

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Time Traveler for sedimentary

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The first known use of sedimentary was in 1830

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Dictionary Entries Near sedimentary



sedimentary rock

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Last Updated

6 Jul 2022

Cite this Entry

“Sedimentary.” Dictionary, Merriam-Webster, Accessed 7 Jul. 2022.

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More Definitions for sedimentary


sed·​i·​men·​ta·​ry | \ ˌse-də-ˈmen-tə-rē How to pronounce sedimentary (audio) \

Kids Definition of sedimentary

: relating to or formed from sediment Sandstone is a sedimentary rock.

More from Merriam-Webster on sedimentary

Nglish: Translation of sedimentary for Spanish Speakers


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