[ ben-tn-ahyt ]
/ ˈbɛn tnˌaɪt /
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.
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Origin of bentonite
1895–1900; named after Fort Benton, Montana; see -ite1
OTHER WORDS FROM bentoniteben·ton·it·ic [ben-tn-it-ik], /ˌbɛn tnˈɪt ɪk/, adjective
Words nearby bentonite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for bentonite
Sodium sulphate and bentonite are two of the more recent mineral discoveries in North Dakota.North Dakota|Various
British Dictionary definitions for bentonite
/ (ˈbɛntəˌnaɪt) /
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
Word Origin for bentonite
C19: from Fort Benton, Montana, USA, where found, + -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012