- a white, crystalline, water-insoluble powder, BaSO4, used chiefly in the synthesis of pigments, as in paints and printing inks, and, because of its radiopacity, for x-ray diagnosis in medicine.
Origin of barium sulfate
First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- A fine white powder used as a pigment and as a contrast medium in x-ray photography of the digestive tract.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A fine white powder used in making textiles, rubber, and plastic. It is also used in diagnostic imaging of the digestive tract. Barium sulfate occurs in nature as the mineral barite. Chemical formula: BaSO4.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.