clast

noun

clast

noun

/klæst/

Etymology Back-formation from clastic.

1

Geography, Geology, Natural sciences a fragment of rock that was broken from a larger rock or rock unit.

Derived terms: bioclast, crystalloclast, epiclast, hyaloclastite, interclast, intraclast, porphyroclast, xenoclast
Related terms: iconoclast

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.