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An odorless, insoluble white powder used in the making of pigments, paper, textiles, and plastics, and ingested as a contrasting agent in X-raying the digestive tract.
- ‘Measurements were calibrated using a barium sulfate standard that reflects >99% of incidental light.’
- ‘Others are blending barium sulfate or tungsten compounds into their material mix to add radiopacity to the extruded products, Shah says.’
- ‘In fact, depending on your medical problem and the type of study that has been requested, you may be asked to drink one bottle of barium sulfate at bedtime.’
- ‘Barium salts are opaque to x rays, and so a slurry of barium sulfate is ingested in order to outline the stomach and intestines in x - ray diagnosis of those organs.’
- ‘In these feeding trials, ant pupae were injected with an aqueous barium sulfate solution so that they could be visualized throughout intraoral transport and swallowing.’
- ‘Barium enema with air contrast examination: For this exam, barium sulfate, a chalky substance that shows up on x-rays, is given in enema form.’
- ‘Since barium sulfate is opaque to x rays, a clear image of the details of the GI system can be obtained, and most defects can be detected.’
- ‘‘A more cutting edge approach is to use nets infused with barium sulfate, which makes them stiffer and easier [for marine mammals] to detect acoustically,’ she said.’
- ‘The reflected light from the animal re-enters the ultra pure white barium sulfate coated sphere.’
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The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.