1. A geographically defined region under the jurisdiction or control of a state, nation, or administrative entity
The country expanded its territorial area through conquest.
O país expandiu sua área territorial através da conquista.
2. The extent of land belonging to or under the sovereignty of a particular government
Disputes over territorial area have caused conflicts between neighboring countries.
Disputas sobre área territorial causaram conflitos entre países vizinhos.
3. In geography and administration, the surface area of a defined region or territory
Brazil has the largest territorial area in South America.
O Brasil possui a maior área territorial da América do Sul.