The area of land surrounding and within the boundaries of a Roman city, municipium, etc., and under its jurisdiction. Also more generally: the territory over which a state, church, etc., exercises jurisdiction.
Origin
Early 18th century. From classical Latin territōriumterritory.
Definition of territorium in US English:
territorium
nounˌtɛrɪˈtɔːrɪəm
The area of land surrounding and within the boundaries of a Roman city, municipium, etc., and under its jurisdiction. Also more generally: the territory over which a state, church, etc., exercises jurisdiction.
Origin
Early 18th century. From classical Latin territōrium territory.