Meaning of magnesium trisilicate

magne'sium trisil'icate

Pronunciation: [key]
  1. a white, fine, odorless and tasteless powder, MgOSi&multiplydot;nHO, used industrially to absorb odors and decolorize and pharmaceutically as an antacid.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.