Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to barium compound: barium solution
Any of the compounds containing barium and suitable diluents or additives. They are used in the form of insoluble barium sulfate, to visualize, that is, to outline, the hollow viscera in roentgenography. Poisoning occasionally occurs when the soluble salts are used accidentally in place of the insoluble sulfate.
See also: compound