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Noun: bur oak  bur owk
  1. 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
    - burr oak, mossy-cup oak, mossycup oak, Quercus macrocarpa

Derived forms: bur oaks

Type of: white oak

Encyclopedia: Bur oak