Meaning of sodium silicate

so'dium sil'icate

Pronunciation: [key]
— Chem. Chem.
  1. any of several clear, white, or greenish water-soluble compounds of formulas varying in ratio from NaO&multiplydot;3.75SiO to 2NaO&multiplydot;SiO: used chiefly in dyeing, printing, and fireproofing textiles and in the manufacture of paper products and cement. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.