Any of various oak trees with reddish bark, wood, etc.; (now) specifically any of several North American oaks, (especially Quercus rubra), characterized by leaves which have bristle-tipped lobes and by acorns which ripen in the second year; the wood of such a tree.
Origin
Old English.
Definition of red oak in US English:
red oak
noun
Any of various oak trees with reddish bark, wood, etc.; (now) specifically any of several North American oaks, (especially Quercus rubra), characterized by leaves which have bristle-tipped lobes and by acorns which ripen in the second year; the wood of such a tree.