Heartwood Definition

härtwo͝od

noun

The hard, nonliving, older wood at the core of a tree trunk, usually dark in color and impervious to air and water; duramen.

Webster's New World

The wood nearer the heart of a stem or branch, different in color from the sapwood.

A popular myth is that heartwood is stronger than sapwood.

Wiktionary

Synonyms:

Other Word Forms of Heartwood

Singular:

heartwood

Plural:

heartwoods

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