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Definition of Quercus rubra
1. Noun. Large symmetrical deciduous tree with rounded crown widely distributed in eastern North America; has large leaves with triangular spiny tipped lobes and coarse-grained wood less durable than that of white oaks. 
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1. Noun. Large symmetrical deciduous tree with rounded crown widely distributed in eastern North America; has large leaves with triangular spiny tipped lobes and coarse-grained wood less durable than that of white oaks.