- an oak, Quercus alba, of eastern North America, having a light-gray to white bark and yielding a hard, durable wood: the state tree of Connecticut and Maryland.
- any of several other species of oak, as Q. garryana or Q. lobata, of western North America.
- the wood of any of these trees.
Origin of white oak
- a town in central Maryland, near Washington, D.C.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for white oak
Sharp, shrewd, able and all that, but rough and hard as the broadside of a white-oak plank.Fair Harbor
Joseph Crosby Lincoln
The white-oak acorns are much larger than any I ever saw in England.
"What a wonderful country the White-Oak Flats must be," she said.Queer Stories for Boys and Girls
Dead earnest, Miss King; and for medicine we had sumac and white-oak bark.Elsie's Womanhood
The green-crested pewee builds its nest in many instances wholly of the blossoms of the white-oak.Wake-Robin
- a large oak tree, Quercus alba, of E North America, having pale bark, leaves with rounded lobes, and heavy light-coloured wood
- any of several other oaks, such as the roble
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012