cinchonamine
noun
cin·chon·amine
| \ siŋ-ˈkō-nə-ˌmēn
, sin-ˈchō-
, -mən\
, sin-ˈchō-
, -mən\
Medical Definition of cinchonamine
: a white crystalline alkaloid C19H24N2O obtained from some South American shrubs (genus Remijia) of the madder family that has been used as a substitute for and is more toxic than quinine