sedimentary
adjective
sed·i·men·ta·ry
ˌse-də-ˈmen-tə-rē 
-ˈmen-trē
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 exhibit features ceramics made of clay and soft sedimentary rock by contemporary artist Echo Morgan.
—
Alyson Rodriguez, Dallas Morning News, 19 Feb. 2026
For centuries, Lake Maracaibo’s environs were known for natural seepage of oil rising to the surface from sedimentary rock, a phenomenon also seen in sites like Los Angeles’ La Brea Tar Pits.
—Mery Mogollón, Los Angeles Times, 15 Feb. 2026
Don’t bother looking for fossils; almost no sedimentary rock has had time to form.
—Literary Hub, 11 Feb. 2026
The black expanse of thin, dense and relatively young basalt from those centers stands in stark contrast to thicker, more buoyant continental crust, which is primarily granite but contains the full gamut of sedimentary, metamorphic, and igneous rocks and can be billions of years old.
—Evan Howell, Scientific American, 4 Feb. 2026
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Alyson Rodriguez, Dallas Morning News, 19 Feb. 2026
For centuries, Lake Maracaibo’s environs were known for natural seepage of oil rising to the surface from sedimentary rock, a phenomenon also seen in sites like Los Angeles’ La Brea Tar Pits.
—Mery Mogollón, Los Angeles Times, 15 Feb. 2026
Don’t bother looking for fossils; almost no sedimentary rock has had time to form.
—Literary Hub, 11 Feb. 2026
The black expanse of thin, dense and relatively young basalt from those centers stands in stark contrast to thicker, more buoyant continental crust, which is primarily granite but contains the full gamut of sedimentary, metamorphic, and igneous rocks and can be billions of years old.
—Evan Howell, Scientific American, 4 Feb. 2026
See All Example Sentences for sedimentary
Cite this Entry
“Sedimentary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sedimentary. Accessed 25 Feb. 2026.
Copy CitationKids Definition
sedimentary
adjective
sed·i·men·ta·ry
ˌsed-ə-ˈment-ə-rē
-ˈmen-trē
1
: of, relating to, or containing sediment
2
: formed by or from sediment
sedimentary rock
compare igneous, metamorphic
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