| 单词 | bentonite |
| 释义 | Word Frequency bentonite(ˈbɛntəˌnaɪt) noun 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 C19: from Fort Benton, Montana, USA, where found, + -ite1 |
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