Chalcedonian
The 
Chalcedonian churches are those Christian churches who follow the 
Christological teachings of the 
Council of Chalcedon, in contradistinction to 
Nestorians, 
Monophysites and 
Monothelites. The latter are sometimes referred to collectively as 
non-Chalcedonian.
The Chalcedonian churches include the Roman Catholic and Eastern Orthodox churches.