English version

barrier reef in Nature topic

From Longman Dictionary of Contemporary Englishbarrier reefˌbarrier ˈreef noun [countable] 🔊 🔊 DNSGa line of coral (=pink stone-like substance) separated from the shore by water
Examples from the Corpus
barrier reefThus, the fringing reef would be changed into a barrier reef and finally into an atoll if the island subsided completely.