barrier island
noun
Definition of barrier island
: a long broad sandy island lying parallel to a shore that is built up by the action of waves, currents, and winds and that protects the shore from the effects of the ocean
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First Known Use of barrier island
1773
BARRIER ISLAND Defined for English Language Learners
barrier island
noun
Definition of barrier island for English Language Learners
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: a long, sandy island that is near a shore
BARRIER ISLAND Defined for Kids
barrier island
noun
Definition of barrier island for Students
: a long broad sandy island parallel to a shore that is built up by the action of waves, currents, and winds
Learn More about barrier island
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Britannica.com: Encyclopedia article about barrier island
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