Bentonite (noun) Definition, Meaning & Examples

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noun Mineralogy.
  1. 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.
noun
  1. 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
Bentonite (noun) Definition, Meaning & Examples

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