Meaning of barium sulfate

bar'ium sul'fate

Pronunciation: [key]
— Chem. Chem.
  1. a white, crystalline, water-insoluble powder, BaSO, used chiefly in the synthesis of pigments, as in paints and printing inks, and, because of its radiopacity, for x-ray diagnosis in medicine.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: