diffuse-porous

American  

[dih-fyoos-pawr-uhs, -pohr-] / dɪˌfyusˈpɔr 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

In diffuse-porous woods the pores are scattered throughout the growth ring instead of being collected in a band or row.

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, brown or reddish, sap-wood white; diffuse-porous; rings, obscure; grain, fairly straight; rays, numerous, obscure.

From Wood and Forest by Noyes, William

Appearance of Wood: Color, light brown, sap-wood thick, whitish; diffuse-porous; rings, obscure; grain, close; rays, numerous, broad.

From Wood and Forest by Noyes, William

Appearance of Wood: Color, reddish brown, sap-wood lighter; diffuse-porous; rings, marked by 163 broad bands of small ducts; grain, cross, close; rays, numerous, large, conspicuous.

From Wood and Forest by Noyes, William

Appearance of Wood: Color, rich brown and red, sap-wood thick, nearly white; diffuse-porous; rings, obscure; grain, close, fibres interlaced, sometimes figured, polishes well; rays, numerous and thin.

From Wood and Forest by Noyes, William