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The older, nonliving central wood of a tree or shrub, usually darker and harder than the younger sapwood. Also called duramen.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Botany) the central core of dark hard wood in tree trunks, consisting of non-functioning xylem tissue that has become blocked with resins, tannins, and oils. Compare sapwood
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



the dense, dark, nonfunctioning older wood at the core of a tree trunk; duramen.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heartwood - the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood
tree - a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
wood - the hard fibrous lignified substance under the bark of trees
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
It is formed in the heartwood of Palisan tree (Aquilaria tree) when they become infected with a type of mold called Phialophora parasitica).
Red-heart Chinese fir originates in Jiangxi Province and is well known for the beautiful color of its heartwood, the xylem part that lies close to the pith, which is called "red-heart" (Fan et al.
Rasasi houses a great variety of authentic agarwood, from rare heartwood of old agarwood trees, to top graded high-quality heartwood, with each piece handpicked by experts to bring the finest of the palette to the connoisseurs of agarwood.
It's summer at the Heartwood Hotel, and a new guest arrives who may hold some answers about Mona's family!
The A+ rated national workers' compensation insurer unveiled plans for Heartwood Preserve, one of the largest urban developments in the United States.
A True Home (Heartwood Hotel, Book 1) written by Kallie George illustrations by Stephanie Graegin HarperCollins Publishers, 2017 978-1-44344-393-7 (hc) $16.99 978-1-44344-395-1 (eBook) $11.99 for Grades 2 to 4
To evaluate the effects of polar and apolar extractives on the thermal behavior of wood, sawdust samples from the heartwood of L.
Auburn-soaked heartwood more roan than russet riding to the horizon on the flanks of wild mustangs.
UK-based Heartwood Investment Management has said that it has hired an investment director from Citigroup Inc (NYSE: C).
The wood anatomical characteristics influence adhesion, taking as an example the difference in porosity observed in early wood and late wood, heartwood and sapwood, and juvenile and adult wood (Albuquerque & Latorraca, 2005).
Particularly, from Chinese herbal preparations, heartwood was found and has been commonly employed as a part of commercial drug mixtures for cardiovascular treatments, including Qi-Shen-Yi-Qi decoction, Guanxin-Danshen pills, and Danshen injection [5, 6, 8-11].