Definition of aluminosilicate in English:

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Pronunciation: /əˌlo͞omənəˈsiləkət/


A silicate in which aluminum replaces some of the silicon, especially a rock-forming mineral such as a feldspar or a clay mineral.
Example sentences
  • These minerals are hydrated aluminosilicates consisting of sheets of alumina and silica with interchangeable cations and considerable amounts of combined or loosely bound water.
  • In carbonate-rich soils, rapid neutralization of rainwater by carbonate minerals restricts the mobilization of aluminosilicates and oxides.
  • The weathering and decay of aluminosilicate minerals occurs by hydrolysis, and it is well documented that the rate of many hydrolysis reactions is sensitive to pH.


Early 20th century: from alumino- (combining form of aluminum) + silicate.

For editors and proofreaders

Syllabification: a·lu·mi·no·sil·i·cate

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