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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 heart·wood /-ˌwʊd/
 赤木質,心材

From: Webster's Revised Unabridged Dictionary (1913)

 Heart·wood 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.
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From: WordNet (r) 2.0

 heartwood
      n : the older inactive central wood of a tree or woody plant;
          usually darker and denser than the surrounding sapwood
          [syn: duramen]