pedotubule

pedotubule

[¦ped·ō′tüb·yül]
(geology)
A soil feature consisting of skeleton grains, or skeleton grains plus plasma, and having a tubular external form (either single tubes or branching systems of tubes) characterized by relatively sharp boundaries and relatively uniform cross-sectional size and shape (circular or elliptical).
References in periodicals archive ?
Some are called pedotubules (Rezende 1980; Resende et al.