Found 2 items, similar to Calabar bean.
English → English (WordNet) Definition: calabar bean calabar bean n : dark brown highly poisonous seed of the calabar-bean vine; source of physostigmine and used in native witchcraft [syn: ordeal bean]
English → English (gcide) Definition: Calabar bean Calabar \Cal"a*bar\, n. A district on the west coast of Africa. [1913 Webster] 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. [1913 Webster]