An exclusion zone is an area where people are not allowed to go or where they are not allowed to doa particular thing, for example because it would be dangerous.
exclusion zone in British English
(ɪkˈskluːʒən zəʊn)
noun
an area into which unauthorized people are not allowed to go for reasons of safety or security
Police imposed a half-mile exclusion zone around the tanker and told residents theycould not return to their homes until morning.
Examples of 'exclusion zone' in a sentence
exclusion zone
Escorting them out of the exclusion zone, the Sagittaire had almost rammed the trawler.