1) Glycoside 
(from the article `Strophanthus`) ...that are native to tropical Africa and Southeast Asia. The flower petals of some species are drawn out into long threads. The bark and seeds of ...
K-strophanthin;a glycoside or mixture of glycosides from Strophanthus kombe; a cardiac tonic, like ouabain (G-strophanthin); extremely toxic. ... (05 Mar 2000) ... 
Mixture of glycosides from Strophanthus kombe that has properties similar to digoxin and ouabain. See digitalis.
Type: Term Pronunciation: strō-fan′thin Definitions: 1. A glycoside or mixture of glycosides from Strophanthus kombe; an obsolete cardiac tonic, like ouabain (G-strophanthin); extremely toxic.
[n] - a bitter and very toxic glycoside derived from plants of the genus Strophanthus
noun a bitter and very toxic glycoside derived from plants of the genus Strophanthus; in moderate doses it is a cardiac stimulant but in larger doses it is a powerful poison; used in Africa as an arrow poison
a very poisonous, bitter glycoside or mixture of glycosides obtained from the dried, ripe seeds of a strophanthus, esp. Strophanthus kombe, used as a cardiac stimulant.