1. A precise and clearly defined boundary or limit between two areas, concepts, or jurisdictions
The exact demarcation between the two properties was established by a surveyor.
A demarcação exata entre as duas propriedades foi estabelecida por um agrimensor.
2. The act of marking or determining boundaries with precision and clarity
The exact demarcation of responsibilities between departments prevented confusion.
A demarcação exata de responsabilidades entre os departamentos evitou confusão.