Sapwood

[sæpwud]

Definition

(noun.) newly formed outer wood lying between the cambium and the heartwood of a tree or woody plant; usually light colored; active in water conduction.

Inputed by Boris--From WordNet

Definition

(n.) 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.

Typist: Molly