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[Latin dūrāmen, hard growth of a vine, from dūrāre, to harden, from dūrus, hard; see deru- in Indo-European roots.]
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) another name for heartwood
[C19: from Latin: hardness, from dūrāre to harden]
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.
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|Noun||1.||duramen - 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
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