Heartwood
FIBROUS MATERIAL FROM TREES OR OTHER PLANTS
Wood, as a medium; Wooden; Heartwood; Duramen; Wood knot; Alburnum; Knot (wood); Knot (timber); Knothole; Splintwood; Latewood; Wood products; Sapwood (wood); Wood chemicals; Wood engineering design; Wood properties; Summer wood; Spring wood; Earlywood; Ring-porous wood; Diffuse-porous wood; Late wood; Wood product; Knots (wood); Table of Wood and Bamboo Mechanical and Agricultural Properties; 🪵
·noun 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.