Word.ws English Dictionary

clast

/klæst/

clast noun: a fragment of rock that was broken from a larger rock or rock unit.

Noun

clast (plural clasts)

  1. a fragment of rock that was broken from a larger rock or rock unit.

Forms of clast

pluralclasts

Origin of clast

Back-formation from clastic.

Words formed from clast

Words that rhyme with clast

2 more rhymesFewer rhymes

Questions about clast

What does clast mean?
Clast means a fragment of rock that was broken from a larger rock or rock unit.
What part of speech is clast?
Clast is a noun.
How do you pronounce clast?
Clast is pronounced /klæst/.
What is the plural of clast?
The plural of clast is clasts.

Words near clast in the dictionary

  1. classward
  2. classwide
  3. classwise
  4. classwork
  5. classy
  6. clast
  7. clastic
  8. clastics
  9. clastogen
  10. clastogeneses
  11. clastogenesis

Source and license

Adapted from Wiktionary: clast (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-clast.wav.

Cite this entry: “clast.” Word.ws, https://word.ws/clast. Based on Wiktionary, CC BY-SA 4.0.