1. A permanent, established boundary or dividing line between two territories, areas, or jurisdictions
The treaty established a fixed demarcation between the two countries.
O tratado estabeleceu uma demarcação fixa entre os dois países.
2. A clear and definitive separation or distinction between different categories, responsibilities, or functions
There is a fixed demarcation between the executive and legislative branches of government.
Há uma demarcação fixa entre os poderes executivo e legislativo do governo.