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Definition of: physostigmine
(fī′sō·stig′mēn, -min) noun Chem.
A white, tasteless, toxic alkaloid, C15H21,N3O2, derived from the Calabar bean; used as a miotic: also called eserine. [<NL Physostigma, genus of the Calabar bean (<Gk. physa a bladder + stigma a mark) + -INE2]
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