Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The older, nonliving central wood of a tree or woody plant, usually darker and harder than the younger sapwood. Also called duramen.

from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from the GNU version of the Collaborative International Dictionary of English

  • n. The hard, central part of the trunk of a tree, consisting of the old and matured wood, and usually differing in color from the outer layers. It is technically known as duramen, and distinguished from the softer sapwood or alburnum.

from The Century Dictionary and Cyclopedia

  • n. The central wood in the trunk of an exogenous tree; duramen.
  • n. The Tasmanian ironwood, Notelæa ligustrina, the hard, close-grained wood of which is used for turning.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood

Etymologies

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  • The older, nonliving central wood of a tree or woody plant, usually darker and harder than the younger sapwood. Also called duramen.

    August 7, 2007