Hypertext Webster Gateway: "heartwood"

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Heartwood \Heart"wood`\, n.
The hard, central part of the trunk of a tree, consisting of
the old and matured wood, and usually differing in color from
the outer layers. It is technically known as duramen, and
distinguished from the softer sapwood or alburnum.

From WordNet (r) 1.7 (wn)

n : the older inactive central wood of a tree or woody plant;
usually darker and denser than the surrounding sapwood
[syn: {duramen}]

Additional Hypertext Webster Gateway Lookup

Enter word here:
Exact Approx

Gateway by dict@stokkie.net
stock only wrote the gateway and does not have any control over the contents; see the Webster Gateway FAQ, and also the Back-end/database links and credits.