bufagin

bu·fa·gin

noun \ˈbyü-fə-jən\

Definition of BUFAGIN

: a toxic steroid C₂₄H₃₄O₅ obtained from the poisonous secretion of a skin gland on the back of the neck of a large toad (Bufo marinus) that resembles digitalis in physiological activity; also : any of several similar substances from secretions of other toads—compare bufotoxin