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British Anti-Lewisite, a drug (dimercaprol) developed as an antidote to Lewisite and used also to neutralize metallic poisons, e.g. arsenic.
= B.A.L. n. at B, n. initialisms 1.
A drug used in conjunction with atropine as an antidote to poisoning by certain organophosphates, acting by dephosphorylating and reactivating the…