cardenolide

noun
card·​enol·​ide | \kärˈdēnᵊlˌīd\
plural -s

Definition of cardenolide 

: any of numerous organic compounds with a characteristic ring structure many of which are found in plants (as some milkweeds), have an effect on the vertebrate heart like that of digitalis, and cause vomiting

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History and Etymology for cardenolide

cardiac + butenolide ring, a constituent of cardenolide

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