单词 | bentonite |
释义 | bentonite —bentonitic /ben'tn it"ik/, adj. /ben"tn uyt'/, n. Mineral. a clay formed by the decomposition of volcanic ash, having the ability to absorb large quantities of water and to expand to several times its normal volume. [1895-1900; named after Fort Benton, Montana; see -ITE1] |
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