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montmorillonite

[ mont-muh-ril-uh-nahyt ]

noun

  1. any of a group of clay minerals characterized by the ability to expand when they absorb large quantities of water.


montmorillonite

/ ˌmɒntməˈrɪləˌnaɪt /

noun

  1. a clay mineral consisting of hydrated aluminium silicate: an important component of bentonite
“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


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Other Words From

  • mont·mo·ril·lon·it·ic [mont-m, uh, -ril-, uh, -, nit, -ik], adjective
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Word History and Origins

Origin of montmorillonite1

1850–55; named after Montmorillon, France, where it was found; -ite 1
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Word History and Origins

Origin of montmorillonite1

C19: named after Montmorillon , French town where it was first found, + -ite 1

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MontmorencyMontparnasse