wäˈbīə̇n, ˈwäbəə̇n noun
( -s )
Etymology: International Scientific Vocabulary ouaba io + -in; probably originally formed as French ouabaïne
: a very toxic crystalline steroidal glycoside C 29 H 44 O 12 obtained from the seeds of an African shrub ( Strophanthus gratus ) or from the wood of trees of the genus Acocanthera (as A. schimperi ) that yields rhamnose and ouabagenin on hydrolysis and that is used similarly to digitalis and in Africa as an arrow poison — called also g-strophanthin, strophanthin-g