/duy'meuhr kap"rawl, -rol/ , n. Chem.
a colorless, oily, viscous liquid, C 3 H 8 OS 2 , originally developed as an antidote to lewisite and now used in treating bismuth, gold, mercury, and arsenic poisoning. Also called BAL, British Anti-Lewisite .
[ 1945-50; contr. of di-mercapto-propanol ( mercapto- comb. form of MERCAPTAN) ]