1. A room that has been completely closed and airtight, preventing entry or exit of air, light, or other substances
The laboratory was a sealed room to maintain sterile conditions.
O laboratório era uma sala selada para manter condições estéreis.
2. In legal or diplomatic contexts, a room secured and locked, with its contents preserved without access
The documents were kept in a sealed room until the trial.
Os documentos foram mantidos em uma sala selada até o julgamento.
3. A room isolated from external contact, used in quarantine or containment procedures
Patients were isolated in sealed rooms during the outbreak.
Os pacientes foram isolados em salas seladas durante o surto.