A long, narrow ridge of coral that runs parallel to the mainland and is separated from it by a deep lagoon.
American Heritage Science
Other Word Forms of Barrier Reef
Barrier Reef Sentence Examples
Off the Queensland coast the shelf broadens, its outer edge being lined by the seaward face of the Great Barrier Reef.
The Great Barrier Reef forms the prominent feature off the north-east coast of Australia; its extent from north to south is 1200 m., and it is therefore the greatest of all coral reefs.
An almost unbroken barrier reef skirts the west shore at about 5 m.
The Great Barrier Reef of Australia can be traced more or less continuously round the Gulf of Papua and along the south-east coast to the extremity of the Louisiades.
The surveys and reports of Captain Moresby in 1874 brought home to Queensland (and Australia generally) the dangers possible to her commerce were the coasts opposite to Torres Strait and the entrance to the splendid waterway inside the Barrier Reef to fall into the possession of a foreign power.