Noun: burr oak
- Medium to large deciduous oak of central and eastern North America with ovoid acorns deeply immersed in large fringed cups; yields tough close-grained wood
"The ancient burr oak had stood in the prairie for centuries";
- bur oak, mossy-cup oak, mossycup oak, Quercus macrocarpa
Derived forms: burr oaks
Type of: white oak
Encyclopedia: Burr oak