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Noun: heartwood  'haa(r)t`wûd
  1. The older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood
    - duramen

Derived forms: heartwoods

Type of: wood

Part of: tree

Encyclopedia: Heartwood

Nearest

heartsease
heartseed
heart-shaped
heartsick
heartsickness
heartstrings
heartthrob
heart-to-heart
heartwarming
heart-whole
heartwood
hearty
heat
heat barrier
heat capacity
heat content
heat death
heat dissipation
heat energy
heat engine
heat exchanger