the world > plants > particular plants > cultivated or valued plants > plants yielding poison > [noun] > bean or seed yielding poison > Calabar-bean (2)
the seed of the Calabar bean, Physostigma venenosum, used as an ordeal poison; (also) the plant itself.
the seed of Physostigma venenosum, a climbing leguminous plant of West Africa. Used as a remedy in certain diseases.