sar·men·to·cymarin \sär|mentō+\noun Etymology:sarmento- (from New Latin sarmentosus — specific epithet of Strophanthus sarmentosus — , from Latin, sarmentose) + cymarin : a crystalline steroid cardiac glycoside C30H46O8 found in the seeds of several plants of the genus Strophanthus (as S. sarmentosus)