Synonym of sound barrier (sense 2).

A massive system of coral reefs, found in the Coral Sea off the coast of Australia.

(anatomy) A structure in the central nervous system (CNS) that keeps various substances found in the bloodstream out of the brain while allowing in the substances essential to metabolic function, e.g. oxygen.

plural of New Jersey barrier

Alternative form of Jersey barrier

A barricade erected at a public event, such as a rally or festival, to prevent people from entering certain areas.

a means of limiting imports without charging a tariff in the form of taxes or duties; an import restriction.

plural of non-tariff barrier

plural of crowd control barrier

A large island in the Hauraki Gulf off the coast of the North Island, New Zealand. The smaller Little Barrier Island is to the west of it.