aurum

(aw'rum) [L.] Gold; a yellow metal, one of the elements, symbol Au, atomic weight 197.2. The pure metal is used for iilling cavities in the teeth some of the salts are employed in medicine. au'ri bro'midum, gold bromide, a brown powder, employed in epilepsy, headache, and as a nerve sedative, in doses of gr. -3—^ (0.013-0.03). au'ri chlo'ridum, gold chloride, orange colored deliquescent crystals; has been employed locally as a caustic in cancer, aii'ri et so'dii chlo'ridum (U.S.), double chloride of gold and sodium, a deliquescent orange-colored powder composed of equal parts of anhydrous gold chloride and sodium chloride alterative and tonic in doses of gr. j^-xV (0.003—0.006).