Meaning of BARIUM SULPHATE

WordNet Dictionary
	Definition:		[n]  a white or colorless mineral (BaSO4); the main source of barium [n]  a white insoluble radiopaque powder used as a pigment
	Synonyms:		barite, barium sulfate, barytes, blanc fixe, heavy spar
	See Also:		atomic number 56, Ba, barium, mineral, sulfate, sulphate