a grayish-white, water-insoluble, poisonous powder, BaO 2 , used chiefly in the manufacture of hydrogen peroxide and as a bleaching agent for textiles.
The rear chamber of the bullet held a cup containing the mixture of barium peroxide and magnesium.
America’s Munitions 1917-1918 Benedict Crowell
- Barium enema
See under GI series. gastrointestinal series: x-ray examination of the upper or lower gastrointestinal tract after barium sulfate is given rectally (barium enema) or orally as a contrast medium. noun an injection into the rectum of a preparation of barium sulphate, which is opaque to X-rays, before X-raying the lower alimentary canal barium enema n. […]
baryta (def 2). Also called calcined baryta, barium oxide, barium monoxide, barium protoxide. a white or yellowish-white poisonous solid, BaO, highly reactive with water: used chiefly as a dehydrating agent and in the manufacture of glass. Also called caustic baryta, barium hydroxide, barium hydrate. the hydroxide, hydrated form of this compound, Ba(OH) 2 ⋅8H 2 […]
- Barium hydroxide
baryta (def 2). Historical Examples By warming with alkalies or barium hydroxide, rhamnose is colored yellow. Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron) William Anderson Syme It has a strong affinity for water, and combines with it in the evolution of lead and the formation of barium hydroxide (Ba(OH)2). The New Gresham Encyclopedia. […]
- Barium meal
noun a preparation of barium sulphate, which is opaque to X-rays, swallowed by a patient before X-ray examination of the upper part of the alimentary canal