【医】 卡拉巴豆, 毒扁豆

[ noun ]
dark brown highly poisonous seed of the calabar-bean vine; source of physostigmine and used in native witchcraft
<noun.plant>

Calabar \Cal"a*bar\, n.
A district on the west coast of Africa.

{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.