calabar bean


  • WordNet 3.6
    • n calabar bean dark brown highly poisonous seed of the calabar-bean vine; source of physostigmine and used in native witchcraft
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Webster's Revised Unabridged Dictionary
    • 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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In literature:

Other references to beans will be found under special headings, such as CALABAR BEAN, LOCUST-TREE.
"Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 4" by Various
E'SERIN, or PHYSOSTIGMIN, a drug obtained from Calabar-bean, the active principle of this plant, used as a remedy in cases of tetanus (lockjaw).
"The New Gresham Encyclopedia" by Various