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Meaning of magnesium silicate

magne'sium sil'icate

Pronunciation: [key]
  1. a white powder, 3MgSiO&multiplydot;5HO, with variable hydration, insoluble in water or alcohol, used as a rubber filler, a bleaching agent, an odor absorbent, and in the manufacture of paints and resins.
  2. any silicate containing magnesium, as enstatite, talc, or magnesium trisilicate.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.