from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless oily viscous liquid, C3H8OS2, used as an antidote for poisoning caused by lewisite, organic arsenic compounds, and heavy metals including mercury and gold. Also called British anti-lewisite.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The mercaptan 2,3-dimercaptopropanol used as an antidote to arsenic poisoning
di-1 + mercap(tan) + (p)r(opane) + -ol(e).(American Heritage® Dictionary of the English Language, Fourth Edition)