sapwood

sapwood
/sap"wood'/, n. Bot.
the softer part of the wood between the inner bark and the heartwood. Also called alburnum.
[1785-95; SAP1 + WOOD1]

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▪ xylem layer
also called  alburnum 

      outer, living layers of the secondary wood of trees, which engage in transport of water and minerals to the crown of the tree. The cells therefore contain more water and lack the deposits of darkly staining chemical substances commonly found in heartwood. Sapwood is thus paler and softer than heartwood and can usually be distinguished in cross sections, as in tree stumps, although the proportions and distinctness of the two types are variable in different species.

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Universalium. 2010.

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  • Sapwood — Sap wood , n. (Bot.) The alburnum, or part of the wood of any exogenous tree next to the bark, being that portion of the tree through which the sap flows most freely; distinguished from {heartwood}. [1913 Webster] …   The Collaborative International Dictionary of English

  • sapwood — ► NOUN ▪ the soft outer layers of new wood between the heartwood and the bark …   English terms dictionary

  • sapwood — [sap′wood΄] n. the soft wood between the inner bark of a tree and the heartwood, serving to conduct water and sap …   English World dictionary

  • Sapwood — Die R 7 (Semjorka, russisch Семёрка) war die weltweit erste Interkontinentalrakete. Sie ist bis heute als im wesentlichen unveränderte Sojus im Einsatz und ist die zuverlässigste und am meisten eingesetzte Trägerrakete in der Raumfahrt überhaupt …   Deutsch Wikipedia

  • sapwood — noun The wood just under the bark of a stem or branch, different in color from the heartwood A popular myth is that sapwood is not as strong as heartwood …   Wiktionary

  • sapwood — /ˈsæpwʊd/ (say sapwood) noun in a woody plant, the softer part of the wood between the inner bark and the heartwood. {sap1 + wood1} …  

  • sapwood — noun Date: 1791 the younger softer living or physiologically active outer portion of wood that lies between the cambium and the heartwood and is more permeable, less durable, and usually lighter in color than the heartwood …   New Collegiate Dictionary

  • sapwood — sap|wood [ˈsæpwud] n [U] the younger outer wood in a tree, that is paler and softer than the wood in the middle …   Dictionary of contemporary English

  • Sapwood — Soviet SS 6 intercontinental ballistic missile …   Eponyms, nicknames, and geographical games

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