heartwood

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noun heart·wood \ˈhärt-ˌwu̇d\

Definition of heartwood

  1. :  the older harder nonliving central wood of trees that is usually darker, denser, less permeable, and more durable than the surrounding sapwood

Circa 1575

First Known Use of heartwood

circa 1575


HEARTWOOD Defined for Kids

heartwood

play
noun heart·wood \ˈhärt-ˌwu̇d\

Definition of heartwood for Students

  1. :  the usually dark wood in the center of a tree


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