ˈbyüfəjə̇n noun
( -s )
Etymology: International Scientific Vocabulary bufag- (from New Latin Bufo agua agua toad) + -in
: a crystalline toxic steroid genin C 24 H 34 O 5 obtained from the poisonous secretion of a skin gland on the back of the neck of the agua toad and like digitalis in biological action ; also : any of several similar genins from secretions of other toads — see bufotoxin