A chain of barrier islands extending southward for 175 miles (282 km) along the coast of North Carolina, consisting largely of sand dunes and serving as a buffer against the Atlantic Ocean.
Definition of Outer Banks in US English:
Outer Banks
proper noun
A chain of barrier islands extending southward for 175 miles (282 km) along the coast of North Carolina, consisting largely of sand dunes and serving as a buffer against the Atlantic Ocean.