duramen

• The duramen or heartwood is the inner, darker part of the log. —  Seasoning of Wood
• Wood is composed of duramen or heartwood, and alburnum or sapwood, and when dry consists approximately of 49 per cent by weight of carbon, 6 per cent of hydrogen, 44 per cent of oxygen, and 1 per cent of ash, which is fairly uniform for all species. —  Seasoning of Wood
• It lies next the bark, and after a course of years, sometimes many, as in the case of oaks, sometimes few, as in the case of firs, it becomes hardened and ultimately forms the duramen or heartwood. —  Seasoning of Wood
• It is really imperfect wood, while the duramen or heartwood is the perfect wood; the heartwood of the mature tree was the sapwood of its earlier years. —  Seasoning of Wood
• -- The logwood of commerce is the red heart wood, or duramen, of a fine lofty growing tree (_Haematroxylon Campechianum_), growing in Campeachy and the bay of Honduras, and which is also now common in the woods of Jamaica and St. Domingo. —  The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c.

Allen's Synonyms and Antonyms