duramen

American  

[doo-rey-min, dyoo-] / dʊˈreɪ mɪn, dyʊ- /

noun

Botany.

1. heartwood.

---

duramen British  

/ djʊˈreɪmɛn /

noun

1. another name for heartwood

---

Etymology

Origin of duramen

1830–40; < Latin dūrāmen hardness, hardened vine branch, equivalent to dūrā ( re ) to harden + -men noun suffix

Example Sentences

It is distinguished from the harder inner and older wood, the duramen or heart-wood.

From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg

The portions which are obstructed constitute the duramen or heartwood, the pervious portion the alburnum or sapwood.

From The Church of England Magazine - Volume 10, No. 263, January 9, 1841 by Various

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.

From Seasoning of Wood by Wagner, J. B. (Joseph Bernard)

The wood of the tree, in comparison with the bark, is relatively poor in silex, the duramen of an old tree giving only 2.5 per cent of silex.

From Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures by Various

The duramen or heartwood is the inner, darker part of the log.

From Seasoning of Wood by Wagner, J. B. (Joseph Bernard)