Definition of argillaceous in English:

Share this entry


Pronunciation: /ˌärjəˈlāSHəs/


(Of rocks or sediment) consisting of or containing clay.
Example sentences
  • It is predominantly found in the marl areas but also, more rarely, in fine-grained argillaceous limestones.
  • The 284 m section is composed of calcareous shales, argillaceous limestone, and limestone.
  • They were found as scattered individuals in the argillaceous limestones.


Late 17th century: from Latin argillaceus (from argilla 'clay') + -ous.

For editors and proofreaders

Syllabification: ar·gil·la·ceous

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.