diffuse-porous

American  

[dih-fyoos-pawr-uhs, -pohr-] / dɪˌfjusˈpɔr əs, -ˈpoʊr- /

adjective

Botany.

1. having annual rings in which the size of pores is approximately the same in wood formed in spring and summer.

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Etymology

Origin of diffuse-porous

First recorded in 1900–05

Example Sentences

Appearance of Wood: Color, pale yellow, sap-wood, white, hardly distinguishable; diffuse-porous; rings, not plain; grain fine, twisted and interwoven; rays, numerous, thin.

From Wood and Forest by Noyes, William

In diffuse-porous woods, as has been stated, the vessels or pores are scattered throughout the ring instead of collected in the early wood.

From The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing by Record, Samuel J.

In discussing such woods it is customary to divide them into two large classes—ring-porous and diffuse-porous.

From The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing by Record, Samuel J.

Appearance of Wood: Color, light brown or red, sap-wood yellow; diffuse-porous; rings, obscure; grain, straight, close, fine, takes fine polish; rays, numerous.

From Wood and Forest by Noyes, William

All of our broadleaf woods are either ring-porous or diffuse-porous, though some of them, like the walnut, are nearly half way between the two groups.

From Studies of Trees by Levison, Jacob Joshua