Definition of ouabain
: a poisonous glycoside C29H44O12 obtained from several African shrubs or trees (genera Strophanthus and Acokanthera) of the dogbane family and used medically like digitalis and in Africa as an arrow poison
Origin of ouabain
International Scientific Vocabulary, from French ouabaïo, an African tree, from Somali waabayyo arrow poison
First Known Use: 1893
Seen and Heard
What made you want to look up ouabain? Please tell us where you read or heard it (including the quote, if possible).