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heartwood

 
Dictionary: heart·wood   (härt'wʊd') pronunciation
Home > Library > Literature & Language > Dictionary
n.
The older, nonliving central wood of a tree or woody plant, usually darker and harder than the younger sapwood. Also called duramen.


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Britannica Concise Encyclopedia: heartwood
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Home > Library > Miscellaneous > Britannica Concise Encyclopedia

Dead, central wood of trees. Its cells usually contain tannins or other substances that make it dark and sometimes fragrant. Heartwood is mechanically strong, resistant to decay, and less easily penetrated by wood-preservative chemicals than other types of wood. One or more layers of living and functional sapwood cells are periodically converted to heartwood.

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Columbia Encyclopedia: heartwood
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heartwood, the central, woody core of a tree, no longer serving for the conduction of water and dissolved minerals; heartwood is usually denser and darker in color than the outer sapwood. Before the synthesis of aniline dyes, the heartwood of several tropical trees (sold collectively under the commercial name brazilwood) was used to produce blue, purple, and red dyes. As a tree becomes older, the heartwood increases in diameter, whereas the sapwood remains about the same thickness. See wood.

Wood Glossary: Heartwood
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Home > Library > Home & Garden > Wood Glossary

The inner layers of wood in growing trees that have ceased to contain living cells. Heartwood is generally darker than sapwood, but the two are not always clearly differentiated.

Gardener's Dictionary: heartwood
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Home > Library > Home & Garden > Dictionary for Gardeners

The dead wood at the center of a trunk or branch of a tree. Although it no longer sustains the tree's life by conducting water, it does supply support.

Translations: Heartwood
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Home > Library > Literature & Language > Translations

Dansk (Danish)
n. - kerneved, kernetræ

Nederlands (Dutch)
kernhout

Français (French)
n. - c¯ur du bois

Deutsch (German)
n. - Kernholz

Ελληνική (Greek)
n. - καρδιά ξύλου

Italiano (Italian)
duramen

Português (Portuguese)
n. - cerne (m) (Bot.)

Русский (Russian)
ядровая древесина

Español (Spanish)
n. - duramen

Svenska (Swedish)
n. - kärnved

中文（简体）(Chinese (Simplified))
赤木质, 心材

中文（繁體）(Chinese (Traditional))
n. - 赤木質, 心材

한국어 (Korean)
n. - 심재, 적목질

日本語 (Japanese)
n. - 心材, 赤味

العربيه (Arabic)
‏(الاسم) الجلب خشب القلب الصلب في جذع الشجرة‏

עברית (Hebrew)
n. - ‮לב העץ, ליבה‬

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Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved.  Read more
Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/.  Read more
Wood Glossary. Copyright 2007 woodbook.co.uk.  Read more
Gardener's Dictionary. Taylor's Dictionary for Gardeners, by Frances Tenenbaum. Copyright © 1997 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.  Read more
Translations. Copyright © 2007, WizCom Technologies Ltd. All rights reserved.  Read more