Barium
111barium 140 — Chem. the radioactive isotope of barium having a mass number of 140 and a half life of 12.8 days, used chiefly as a tracer. * * * …
112barium chromate — Chem. a yellow, crystalline compound, BaCrO4, used as a pigment (barium yellow). * * * …
113barium hydroxide — Chem. baryta (def. 2). Also called barium hydrate. * * * …
114barium peroxide — Chem. a grayish white, water insoluble, poisonous powder, BaO2, used chiefly in the manufacture of hydrogen peroxide and as a bleaching agent for textiles. Also called barium dioxide. * * * …
115barium yellow — Chem. See under barium chromate. * * * …
116barium meal — noun A procedure in which the patient ingests barium sulfate (a radioopaque compound) for the purpose of producing clear radiographs of the esophagus, stomach and duodenum …
117barium thiocyanate — noun The barium salt of thiocyanic acid, Ba(SCN), used in photography and in dyeing …
118barium arsenate — noun The barium salt of arsenic acid, Ba(AsO), formed as a precipitate when removing arsenic from water supplies …
119barium chloride — noun The barium salt of hydrochloric acid, BaCl; it is toxic, and has been used as a rat poison …
120Barium swallow — An upper gastrointestinal series (barium swallow) is an X ray test used to define the anatomy of the upper digestive tract. Women who are or may be pregnant should notify the doctor requesting the procedure and the radiology staff. The test… …
