[dahy-mer-kap-rawl, -rol]
noun Chemistry.
  1. a colorless, oily, viscous liquid, C3H8OS2, originally developed as an antidote to lewisite and now used in treating bismuth, gold, mercury, and arsenic poisoning.

Origin of dimercaprol

1945–50; contraction of di-mercapto-propanol (mercapto- combining form of mercaptan)
Also called BAL, British Anti-Lewisite.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for dimercaprol


  1. a colourless oily liquid with an offensive smell, used as an antidote to lewisite and similar toxic substances. Formula: CH 2 (SH)CH(SH)CH 2 OHAlso called: BAL

Word Origin for dimercaprol

C20: by shortening and altering from dimercaptopropanol
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

dimercaprol in Medicine


[dī′mər-kăprôl, -rōl]
  1. A chelating agent developed as an antidote for lewisite and other arsenical poisons, also used as an antidote for antimony, bismuth, chromium, mercury, gold, and nickel poisoning.anti-lewisite British anti-lewisite
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.