Meaning of sodium metasilicate

so'dium met•a•sil'i•cate

Pronunciation: (met"u-sil'i-kit, -kāt"), [key]
— Chem. Chem.
  1. a white, granular sodium silicate, NaSiO, soluble in water: used in detergents and in bleaching and cleaning products.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.