Sapwood

//ˈsapwʊd// noun

Definitions

Noun
  1. 1
    The wood just under the bark of a stem or branch; it differs from the heartwood in color and in physiologic activity (flow of sap). countable, uncountable

    "A popular myth is that sapwood is not as strong as heartwood."

  2. 2
    newly formed outer wood lying between the cambium and the heartwood of a tree or woody plant; usually light colored; active in water conduction wordnet

Etymology

From sap + wood.

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