Atoll

Definition (http://en.wikipedia.org/wiki/Atoll)

An atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely. There may be coral islands/cays on the coral rim. (Wikipedia)

Preferred Units: N/A

Scope Note:
N/A

This term is used for the following terms: 
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Approved Date
11-Dec-2013

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