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sapwood

[sap-woo d] /ˈsæpˌwʊd/
noun, Botany
1.
the softer part of the wood between the inner bark and the heartwood.
Also called alburnum.
Origin of sapwood
1785-1795
1785-95; sap1 + wood1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for sapwood
  • sapwood is the layer of wood inside the bark and cambium that contains living xylem cells and is physiologically active.
  • The width of the sapwood varies with species and tree vigor.
  • sapwood and heartwood make up the bulk of the tree trunk.
  • sapwood is usually lighter in color, but it darkens with age and becomes heartwood.
  • The galleries that cut into the outer sapwood do not have much impact on water movement in the tree.
  • Free of heart center means that the post is cut from the heartwood or sapwood with the pith excluded.
  • Destructive sampling will be used for estimating leaf area and sapwood cross-sectional area along the tree bole.
  • Increment coring will be used to estimate sapwood area and leaf area index of stands.
  • The fungus moves into the tree, and infects the sapwood.
  • The outer layers of the wood of a tree, known as sapwood, are the live part of the wood.
British Dictionary definitions for sapwood

sapwood

/ˈsæpˌwʊd/
noun
1.
the soft wood, just beneath the bark in tree trunks, that consists of living tissue Compare heartwood
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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sapwood in Science
sapwood
  (sāp'wd')   
The younger layers of new wood produced by the interior side of the vascular cambium within a tree trunk. Sapwood is active in the conduction of water and is usually lighter in color than heartwood.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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13
14
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