| NOUN | plant | calabar bean, ordeal bean | dark brown highly poisonous seed of the calabar-bean vine |
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| Meaning | dark brown highly poisonous seed of the calabar-bean vine; source of physostigmine and used in native witchcraft. | |
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| Synonym | ordeal bean | |
| Part of | calabar-bean vine, Physostigma venenosum | Tropical African woody vine yielding calabar beans |
| Broader | bean | Any of various seeds or fruits that are beans or resemble beans |