argillite

noun

ar·​gil·​lite ˈär-jə-ˌlīt How to pronounce argillite (audio)
: a compact argillaceous rock cemented by silica and having no slaty cleavage

Word History

First Known Use

1794, in the meaning defined above

Time Traveler
The first known use of argillite was in 1794

Dictionary Entries Near argillite

Cite this Entry

“Argillite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/argillite. Accessed 4 Feb. 2023.

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