sedimentary

adjective
sed·​i·​men·​ta·​ry | \ˌse-də-ˈmen-tə-rē, -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

Over the eons, the Medusae Fossae Formation steadily eroded as winds swept over the soft red sedimentary rock. Jay Bennett, Popular Mechanics, "Nearly All the Dust on Mars Comes From One Rock Formation," 26 July 2018 The organic molecules and volatiles, comparable to samples of sedimentary rock rich in organics on Earth, included thiopene, methylthiophenes methanethiol and dimethylsulfide. Ashley Strickland, CNN, "NASA's Curiosity rover finds organic matter on Mars," 7 June 2018 Over time, the layers have folded upward, forming the ridge, and the topmost basalt layer is now sliding over the sedimentary layer beneath it. Kirk Johnson, Anchorage Daily News, "In Washington state, a natural disaster unfolds in slow motion," 22 Jan. 2018 Over time, the layers have folded upward, forming the ridge, and the topmost basalt layer is now sliding over the sedimentary layer beneath it. Kirk Johnson, Anchorage Daily News, "In Washington state, a natural disaster unfolds in slow motion," 22 Jan. 2018 Columbus could barely feel it through the sedimentary layers of pain. Karan Mahajan, The New Republic, "After the Strongman," 26 Mar. 2018 Over time, the layers have folded upward, forming the ridge, and the topmost basalt layer is now sliding over the sedimentary layer beneath it. Kirk Johnson, Anchorage Daily News, "In Washington state, a natural disaster unfolds in slow motion," 22 Jan. 2018 Now new research describes sedimentary evidence from eastern Colombia and northwestern Brazil that suggests the enormous basin was covered by ocean water at least twice in the past. Angela Posada-swafford, Scientific American, "Amazon Rain Forest May Have Once Been a Giant Marine Lake," 1 July 2017 Over time, the layers have folded upward, forming the ridge, and the topmost basalt layer is now sliding over the sedimentary layer beneath it. Kirk Johnson, Anchorage Daily News, "In Washington state, a natural disaster unfolds in slow motion," 22 Jan. 2018

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.

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First Known Use of sedimentary

1830, in the meaning defined at sense 1

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Last Updated

17 Nov 2018

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Time Traveler for sedimentary

The first known use of sedimentary was in 1830

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More Definitions for sedimentary

sedimentary

adjective

English Language Learners Definition of sedimentary

: made from material that sinks to the bottom of a liquid : made from sediment

sedimentary

adjective
sed·​i·​men·​ta·​ry | \ˌse-də-ˈmen-tə-rē \

Kids Definition of sedimentary

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

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