thevetin

noun

the·​ve·​tin thə-ˈvēt-ᵊn  ˈthev-ət-ən 

: a poisonous crystalline cardiac glycoside C₄₂H₆₆O₁₈ obtained especially from the seeds of a West Indian shrub or small tree (Thevetia nereifolia) of the dogbane family (Apocynaceae) that yields glucose, digitalose, and a sterol on hydrolysis