bentonite
/ben-tn-ahyt/US // ˈbɛn tnˌaɪt //UK // (ˈbɛntəˌnaɪt) //
膨润土,孟加拉语
Definitions
n.名词 noun
- 1
Mineralogy.
- : 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.
Examples
The discovery of two large bentonite fields in southwestern North Dakota in 1930 opened up a new mineral resource.
Sodium sulphate and bentonite are two of the more recent mineral discoveries in North Dakota.
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