bentonitic

bentonite

[ben-tn-ahyt]
noun Mineralogy.
a clay formed by the decomposition of volcanic ash, having the ability to absorb large quantities of water and to expand to several times its normal volume.

Origin:
1895–1900; named after Fort Benton, Montana; see -ite1

bentonitic [ben-tn-it-ik] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To bentonitic
Collins
World English Dictionary
bentonite (ˈbɛntəˌnaɪt)
 
n
a valuable clay, formed by the decomposition of volcanic ash, that swells as it absorbs water: used as a filler in the building, paper, and pharmaceutical industries
 
[C19: from Fort Benton, Montana, USA, where found, + -ite1]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature