argillaceous

[ ahr-juh-ley-shuhs ]

adjective
  1. Geology, Petrology. of the nature of or resembling clay; clayey.

  2. containing a considerable amount of clayey matter.

Origin of argillaceous

1
First recorded in 1725–35, argillaceous is from the Latin word argillāceus clayish. See argil, -aceous

Words Nearby argillaceous

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How to use argillaceous in a sentence

British Dictionary definitions for argillaceous

argillaceous

/ (ˌɑːdʒɪˈleɪʃəs) /


adjective
  1. (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc: Compare arenaceous (def. 1), rudaceous

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