piedmont angle

piedmont angle

[′pēd‚mänt ¦aŋ·gəl]
(geology)
The sharp break of slope between a hill and a plain, such as the angle at the junction of a mountain front and the pediment at its base.
References in periodicals archive ?
(1958): Weathering and subsurface erosion in granite at the piedmont angle, Balos, Sudan.