Calabar bean

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noun Cal·a·bar bean \ ˈka-lə-ˌbär- \

Definition of Calabar bean

:the dark brown highly poisonous leguminous seed of a tropical west African woody vine (Physostigma venenosum) that is used as a source of physostigmine and was used formerly as an ordeal poison in African witchcraft trials

Origin and Etymology of calabar bean

Calabar, Nigeria


Medical Dictionary

Calabar bean

play
noun Cal·a·bar bean \ ˈkal-ə-ˌbär- \

medical Definition of Calabar bean

:the dark brown poisonous seed of a tropical African woody vine of the genus Physostigma (P. venenosum) that is used as a source of physostigmine

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