barrier reef(redirected from barrier reefs)
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Related to barrier reefs: patch reefs
A long, narrow ridge of coral or rock parallel to and relatively near a coastline, separated from the coastline by a lagoon.
(Physical Geography) a long narrow coral reef near and lying parallel to the shore, separated from it by deep water. See Great Barrier Reef
a reef of coral running roughly parallel to the shore and separated from it by a wide, deep lagoon.
A long, narrow ridge of coral deposits parallel to the mainland and separated from it by a deep lagoon.