[ dahy-mer-kap-rawl, -rol ]
/ ˌdaɪ mərˈkæp rɔl, -rɒl /

noun Chemistry.

a colorless, oily, viscous liquid, C3H8OS2, originally developed as an antidote to lewisite and now used in treating bismuth, gold, mercury, and arsenic poisoning.

Nearby words

  1. dimension stone,
  2. dimensional,
  3. dimensional analysis,
  4. dimensionless number,
  5. dimer,
  6. dimeric,
  7. dimerize,
  8. dimerous,
  9. dimeter,
  10. dimethoate

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. 2019

British Dictionary definitions for dimercaprol


/ (ˌdaɪməˈkæprɒl) /


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

Medicine definitions for dimercaprol


[ dī′mər-kăprôl, -rōl ]


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.