| barium radioisotopes | Unstable isotopes of barium that decay or disintegrate emitting radiation. Ba atoms with atomic weights 126-129, 131, 133, and 139-143 are radioactive barium isotopes. (12 Dec 1998) |
|---|---|
| barium solution | A liquid containing barium sulfate, which shows up on X-rays. It outlines organs of the body so they can be seen on X-ray film. (12 Dec 1998) |
| barium sulfate | <chemical> Sulfuric acid, barium salt (1:1). A compound used as an X-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield. Pharmacological action: contrast media. Chemical name: Sulfuric acid, barium salt (1:1) (12 Dec 1998) |
| barium sulfide | A poisonous grayish yellow powder, used as a depilatory. (05 Mar 2000) |