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British Anti-Lewisite

noun, Chemistry


[dahy-mer-kap-rawl, -rol] /ˌdaɪ mərˈkæp rɔl, -rɒl/
noun, Chemistry
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; contraction of di-mercapto-propanol (mercapto- combining form of mercaptan) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for british antilewisite


a colourless oily liquid with an offensive smell, used as an antidote to lewisite and similar toxic substances. Formula: CH2(SH)CH(SH)CH2OH Also called BAL
Word Origin
C20: by shortening and altering from dimercaptopropanol
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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british antilewisite in Medicine

British anti-lewisite Brit·ish anti-lewisite (brĭt'ĭsh)
See dimercaprol.

dimercaprol di·mer·cap·rol (dī'mər-kāp'rôl, -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. Also called 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.
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Encyclopedia Article for british antilewisite


drug that was originally developed to combat the effects of the blister gas lewisite, which was used in chemical warfare. By the end of World War II, dimercaprol had also been found useful as an antidote against poisoning by several metals and semimetals-including arsenic, gold, lead, and mercury-that act by combining with cellular sulfhydryl groups. Dimercaprol is more effective if its use is begun within two hours after ingestion of the toxic metal. Because of its instability in water, it is administered by intramuscular injection of a solution of it in peanut oil.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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