ordeal bean

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Related to ordeal bean: Physostigma venenosum
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Noun1.ordeal bean - dark brown highly poisonous seed of the calabar-bean vine; source of physostigmine and used in native witchcraft
calabar-bean vine, Physostigma venenosum - tropical African woody vine yielding calabar beans
bean - any of various seeds or fruits that are beans or resemble beans
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