Definitions

1. adjective

Relating to or consisting of fragments or particles of rock, especially those resulting from erosion or weathering.

“The clastic sedimentary rocks were formed from ancient river deposits.”

2. noun

A fragment or particle of rock.

“The geologist examined the various clastic samples from the site.”

3. noun

A sedimentary rock that consists mainly of fragments of other rocks.

“The clastic rocks in the canyon were created through millions of years of erosion.”