1. An international or regional boundary that has been officially established, surveyed, and marked with visible boundaries such as fences, walls, or monuments
The demarcated border between the two countries was established by treaty in 1950.
A fronteira demarcada entre os dois países foi estabelecida por tratado em 1950.
2. A clearly defined and officially recognized line separating two jurisdictions or territories
The demarcated border helps prevent territorial disputes.
A fronteira demarcada ajuda a prevenir disputas territoriais.