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bentonite
noun
ben·ton·ite
ˈben-tə-ˌnīt
: an absorptive and colloidal clay used especially as a sealing agent or suspending agent (as of drugs)
Examples of bentonite in a Sentence
Recent Examples on the Web
Clay ingredients like kaolin or bentonite can help minimize the appearance of whiteheads by purifying the skin and reducing oiliness.11
Non-Comedogenic Products
Choose skincare and makeup products labeled as non-comedogenic, meaning they are formulated not to clog pores.
—William Truswell, Verywell Health, 22 Jan. 2025
This creamy, cooling mask pulls out impurities with marine enzymes, bentonite, and kaolin, transforming from deep green to light green to show off its progress.
—Sarah Han, Allure, 14 Jan. 2025
But before that, in a ground floor space that used to be an industrial kitchen, is Barney’s Water Cast 10 (2015), a large sculpture made by pouring molten bronze into a slurry of water and bentonite clay.
—Andy Battaglia, ARTnews.com, 13 Dec. 2024
The star ingredients here are oil-absorbing clays (including kaolin and bentonite) and the brand’s signature grapeseed polyphenols, which provide free radical protection as well as combat sebum oxidation—the reason blackheads appear dark.
—Emily Orofino, Vogue, 21 Nov. 2024
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Word History
Etymology
Fort Benton, Montana
First Known Use
1898, in the meaning defined above
Dictionary Entries Near bentonite
Cite this Entry
“Bentonite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bentonite. Accessed 2 Feb. 2025.
Kids Definition
bentonite
noun
ben·ton·ite
ˈbent-ᵊn-ˌīt
: an absorbent clay
Medical Definition
bentonite
noun
ben·ton·ite
ˈbent-ᵊn-ˌīt
: an absorptive and colloidal clay used in pharmacy especially to stabilize suspensions
More from Merriam-Webster on bentonite
Britannica.com: Encyclopedia article about bentonite
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