n :  a toxic steroid C₄₀H₆₀N₄O₁₀ obtained from the skin glands of the common toad of Europe (Bufo vulgaris) that resembles digitalis in physiological activity and yields bufotalin on hydrolysis : also  :  any of several similar steroids from the secretions of other toads - compare BUFAGIN  .
 
 
 
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