Calabar bean


noun
  1. the violently poisonous seed of an African climbing plant, Physostigma venenosum, of the legume family, the active principle of which is physostigmine.

Origin of Calabar bean

1
1875–80; named after Calabar, Nigeria

Words Nearby Calabar bean

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British Dictionary definitions for Calabar bean

Calabar bean

/ (ˌkæləˈbɑː, ˈkæləˌbɑː) /


noun
  1. the dark brown very poisonous seed of a leguminous woody climbing plant, Physostigma venenosum of tropical Africa, used as a source of the drug physostigmine

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