Quercus macrocarpa

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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
• Syn:
bur oak, burr oak, mossy-cup oak, mossycup oak
• Hypernyms:
white oak