Sapwood

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]



From WordNet (r) 2.0 [wn]:

  sapwood
       n : newly formed outer wood lying between the cambium and the
           heartwood of a tree or woody plant; usually light
           colored; active in water conduction