ben·​ton·​ite | \ ˈben-tə-ˌnīt How to pronounce bentonite (audio) \

Definition of bentonite

: an absorptive and colloidal clay used especially as a sealing agent or suspending agent (as of drugs)

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Other Words from bentonite

bentonitic \ ˌben-​tə-​ˈni-​tik How to pronounce bentonitic (audio) \ adjective

Examples of bentonite in a Sentence

Recent Examples on the Web Aztec Secret’s Indian Healing Clay is a deep-pore-cleansing mask made of 100% natural calcium bentonite clay that reviewers can’t get enough of. Kiana Murden, CNN Underscored, "15 Amazon beauty products more affordable than their cult-favorite counterparts," 31 Aug. 2020 OmniTRAX will ship in bentonite, an absorbent clay, from Wyoming. Aldo Svaldi, The Denver Post, "With nearly two dozen”shortline” railroads across the country, Denver’s OmniTRAX has quickly become a major player," 29 Sep. 2019 Waste will be sealed in the copper coffins, placed into the storage shafts, and surrounded by a thick layer of bentonite, a natural clay almost impermeable to water. Tim Heffernan, Popular Mechanics, "Finland's Crazy Plan to Make Nuclear Waste Disappear," 10 May 2012 This mask is made with a blend of charcoal, volcanic ash, and kaolin and bentonite clays to remove impurities, exfoliate, absorb excess oils, remove toxins, and reduce inflammation. Tanisha Pina, Allure, "This K-Beauty Brand Just Launched at Walmart and Products Are Already Selling Out," 1 Aug. 2018 Our pomades contain pure ingredients such as bentonite, which is mineral enriching for the hair, and hydrogenated castor oil, which works as a non-sticky wax to hold shape. Scott Christian, Esquire, "One of New York's Coolest Clothing Brands Wants You to Have Great Looking Hair," 3 Mar. 2017 Officials suspect the bentonite seeped into groundwater supplies, causing the water wells to become cloudy. Andrew Maykuth,, "Sunoco resumes drilling Mariner East pipeline in Chester County," 8 July 2017 Local officials suspect that nontoxic bentonite clay used as a lubricant during the horizontal-drilling process may have migrated into private wells. Andrew Maykuth,, "Water-contamination complaints force Sunoco to suspend Chesco pipeline construction," 7 July 2017 In a memo to the mayor, aldermen and city administrator, Deal said staff members have been using bentonite, an absorbent clay, to stop the leaks temporarily. Kaitlyn Schwers,, "No muskrat love after city discovers leaking spillways, damage to dams," 28 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bentonite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bentonite

1898, in the meaning defined above

History and Etymology for bentonite

Fort Benton, Montana

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Time Traveler for bentonite

Time Traveler

The first known use of bentonite was in 1898

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Statistics for bentonite

Cite this Entry

“Bentonite.” Dictionary, Merriam-Webster, Accessed 27 Nov. 2020.

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ben·​ton·​ite | \ ˈbent-ᵊn-ˌīt How to pronounce bentonite (audio) \

Medical Definition of bentonite

: an absorptive and colloidal clay used in pharmacy especially to stabilize suspensions

Other Words from bentonite

bentonitic \ ˌbent-​ᵊn-​ˈit-​ik How to pronounce bentonitic (audio) \ adjective

More from Merriam-Webster on bentonite Encyclopedia article about bentonite

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