barium (Ba)
The chemical element, a soft silvery alkaline earth metal. In everyday Japanese, most often encountered in the context of medical imaging.
Barium is one of the alkaline earth metals.
barium sulfate suspension; barium meal
Commonly refers to the barium sulfate suspension used as a contrast agent in upper gastrointestinal X-ray examinations. In a medical context, バリウムを飲む means to drink the barium preparation before a stomach X-ray.
I drank the barium suspension at my health checkup.
Please drink the barium before the examination.
barium oxide