Simple Definition of sedimentary

from our Learner's Dictionary

sedimentary

adjective

technical : made from material that sinks to the bottom of a liquid : made from sediment
sedimentary layers/deposits
Sandstone is a sedimentary rock. [=a type of rock formed when sediments that were deposited in ancient times were pressed together and became hard]

Cite this Entry

“Sedimentary.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/sedimentary. Accessed 20 Jun. 2026.

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