noun Date: 1866 a crystalline insoluble compound BaSO 4 that is used especially as a pigment and extender, as a filler (as in fluids used in gas and oil drilling), and as a substance opaque to X rays in medical photography of the alimentary canal
BARIUM SULFATE
Meaning of BARIUM SULFATE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012