alburnous

/ælˈbɜrnəs/
adjective
  1. Relating to or resembling sapwood (the soft, light-colored outer wood of a tree).
    • Carpenters often remove the alburnous wood because it is less durable.
    • The alburnous part of the log was pale and easy to carve.
    • The alburnous layer of the tree is softer and more vulnerable to insects.
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