We found 21 dictionaries that define the word clast:

General (13 matching dictionaries)

1. clast: Merriam-Webster
2. clast: Oxford Learner's Dictionaries
3. clast: American Heritage Dictionary of the English Language
4. clast: Collins English Dictionary
5. clast: Vocabulary.com
6. -clast, clast: Wiktionary
7. clast: Infoplease Dictionary
8. clast: Dictionary.com
9. Clast: Wikipedia, the Free Encyclopedia
10. clast: Rhymezone
11. clast: FreeDictionary.org
12. clast: Mnemonic Dictionary
13. clast: TheFreeDictionary.com

Art (1 matching dictionary)

14. -clast, clast-: A Cross Reference of Latin and Greek Elements

Computing (1 matching dictionary)

15. clast: Encyclopedia

Medicine (1 matching dictionary)

16. -clast: Medical dictionary

Miscellaneous (2 matching dictionaries)

17. CLAST: Acronym Finder
18. AbbreviationZ (No longer online)

Science (2 matching dictionaries)

19. Archaeology Wordsmith (No longer online)
20. clast: Natural History Terms

Slang (1 matching dictionary)

21. Clast: Urban Dictionary

(Note: See clasts as well.)

Definitions from Wiktionary (clast) ▸ noun:  (geology) a fragment of rock that was broken from a larger rock or rock unit. Similar: clodlet, crag, clod, clat, spalling, clump block, clunch, debris, clitter, rockfall, more... Opposite: agglutinate, unite, join, fuse Adjectives: large, cat, granitic, single, white, lithic, small, volcanic, average, actual, second ▸ Words similar to clast ▸ Usage examples for clast ▸ Idioms related to clast ▸ Wikipedia articles (New!) ▸ Popular adjectives describing clast ▸ Words that often appear near clast ▸ Rhymes of clast ▸ Invented words related to clast