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argillaceous

 - 2 dictionary results

ar⋅gil⋅la⋅ceous

[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:
1725–35; < L argillāceus clayish. See argil, -aceous
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To argillaceous
ar·gil·la·ceous   (är'jə-lā'shəs)   
adj.  Containing, made of, or resembling clay; clayey.

[From Latin argillāceus : argilla, argil; see argil + -āceus, -aceous.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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