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4 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Phy·so·stig·mine n. Chem. An alkaloid found in the Calabar bean (the seed of Physostigma venenosum), and extracted as a white, tasteless, substance, amorphous or crystalline; -- formerly called eserine, with which it was regarded as identical.
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From: Webster's Revised Unabridged Dictionary (1913)

 Cal·a·bar n. A district on the west coast of Africa.
 Calabar bean, The of a climbing legumious plant (Physostigma venenosum), a native of tropical Africa. It is highly poisonous. It is used to produce contraction of the pupil of the eye; also in tetanus, neuralgia, and rheumatic diseases; -- called also ordeal bean, being used by the negroes in trials for witchcraft.
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From: Webster's Revised Unabridged Dictionary (1913)

 Es·er·ine n.  Chem. An alkaloid found in the Calabar bean, and the seed of Physostigma venenosum; physostigmine. It is used in ophthalmic surgery for its effect in contracting the pupil.
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From: WordNet (r) 2.0

 Physostigma venenosum
      n : tropical African woody vine yielding calabar beans [syn: calabar-bean
           vine]