: made up of fragments of preexisting rocks
a clastic sediment
clastic
noun
Examples of clastic in a Sentence
Recent Examples on the Web
However, these dikes also extend as sills in shallow angles out from the Contention fault along fold noses in the Bisbee clastic sediments so the full range of mineralization dips vary from 20 to 80 degrees.
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Kansas City Star, 10 Apr. 2024
The tan-colored clastic rocks in these photos are the pyroclastic-flow deposits emplaced during the climactic explosive eruptions at the end of the Ellittico stage of Mount Etna, about 15,000 years ago.
—Erik Klemetti, Discover Magazine, 20 Nov. 2019
Badlands National Park — July 14–16 Put South Dakota on your travel bucket list and pay a visit to Badlands National Park, which protects fossil beds and mysterious geologic formations like clastic dikes and sod tables.
—Sarah Kuta, Smithsonian Magazine, 9 June 2023
Kansas City Star, 10 Apr. 2024
The tan-colored clastic rocks in these photos are the pyroclastic-flow deposits emplaced during the climactic explosive eruptions at the end of the Ellittico stage of Mount Etna, about 15,000 years ago.
—Erik Klemetti, Discover Magazine, 20 Nov. 2019
Badlands National Park — July 14–16 Put South Dakota on your travel bucket list and pay a visit to Badlands National Park, which protects fossil beds and mysterious geologic formations like clastic dikes and sod tables.
—Sarah Kuta, Smithsonian Magazine, 9 June 2023
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'clastic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Clastic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clastic. Accessed 19 Apr. 2024.
Copy CitationMedical Definition
clastic
adjective
clas·tic
ˈklas-tik 
: capable of being taken apart
—used of anatomical models made of detachable pieces
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