1. clearly established or marked limits or borders that separate one area, concept, or responsibility from another
The project needs defined boundaries to ensure everyone knows their responsibilities.
O projeto precisa de limites definidos para garantir que todos saibam suas responsabilidades.
2. precise demarcations or borders in physical space, such as property lines or territorial limits
The map shows the defined boundaries of the national park.
O mapa mostra os limites definidos do parque nacional.