1. An area, region, or space whose exact location, boundaries, or characteristics have not been clearly defined or identified
The survey included several unspecified zones that require further investigation.
O levantamento incluiu várias zonas não especificadas que requerem investigação adicional.
2. In administrative or medical contexts, a region lacking precise geographical or categorical designation
Patients from unspecified zones were categorized separately in the study.
Pacientes de zonas não especificadas foram categorizados separadamente no estudo.