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Definition of Southern live oak
1. Noun. Medium-sized evergreen native to eastern North America to the east coast of Mexico; often cultivated as shade tree for it wide-spreading crown; extremely hard tough durable wood once used in shipbuilding. 
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1. Noun. Medium-sized evergreen native to eastern North America to the east coast of Mexico; often cultivated as shade tree for it wide-spreading crown; extremely hard tough durable wood once used in shipbuilding.