- 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
单词 | bentonite |
释义 | WordReference Random House Unabridged Dictionary of American English © 2024 ben•ton•ite (ben′tn īt′),USA pronunciation n. [Mineral.]
Collins Concise English Dictionary © HarperCollins Publishers:: bentonite /ˈbɛntəˌnaɪt/ n
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