Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Dutch
Origin: rif

reef

1 noun
     
Related topics: Nature, Geography
reef1 [countable]
SGDN a line of sharp rocks, often made of coral, or a raised area of sand near the surface of the sea:
a proposal to protect several miles of thousand-year-old coral reef
Definition from the Longman Dictionary of Contemporary English
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