See Also: physostigma(medicine)
physostigma(dictionary)

physostigma (iou)



physostigma noun. M19.
[mod. Latin (see below), from Greek phusa bladder + STIGMA, with ref. to the hooded extension of the style.]
Any of several African leguminous vines of the genus Physostigma, esp. P. venenosum; (a medicinal extract of) the poisonous seed of P. venenosum, the Calabar bean.