regolith(redirected from regoliths)
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The layer of loose rock resting on bedrock, constituting the surface of most land. Also called mantle rock.
[Greek rhēgos, blanket + -lith.]
(Geological Science) the layer of loose material covering the bedrock of the earth and moon, etc, comprising soil, sand, rock fragments, volcanic ash, glacial drift, etc
[C20: from Greek rhēgos covering, blanket + lithos stone]
reg•o•lith(ˈrɛg ə lɪθ)
1. the layer of weathered rock and soil overlying bedrock; mantle rock.
2. an analogous layer on another planet or on the moon.
[1895–1900; < Greek rhêgo(s) rug, blanket + -lith]
The layer of soil and loose rock resting on bedrock, constituting the surface of most land.
the layer of disintegrated and decomposed rock fragments, including soil, lying above the solid rock of the earth’s crust. Also called mantle rock.See also: Geology
The layer of soil and broken rock that covers the bedrock.