Definitions for "Protected area"
an area of land and/or sea which is managed in some way to maintain natural, social and/or cultural values (akin to any of the IUCN categories)
A legally established land or water area under either public or private ownership that is regulated and managed to achieve specific conservation objectives. Biodiversity glossary: Q-Z
is the outermost area of the nuclear plant which is protected by physical means, a security system, and security force to prevent unauthorized entry (see also Vital Area).
That portion of a premises that is covered by an alarm system.