Regolith meaning

rĕg'ə-lĭth'
(geology) The layer of loose rock, dust, sand, and soil, resting on the bedrock, that constitutes the surface layer of most dry land on earth, the moon, and other large solid aggregated celestial objects. There can also be sub-marine regolith.)
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The layer of loose rock resting on bedrock, constituting the surface of most land.
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The loose, unconsolidated material, residual or transported, that rests on the bedrock; mantle rock.
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The layer of rock and mineral fragments that rests on bedrock and is produced by the weathering of rocks. Regolith constitutes the surface of most land.
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Origin of regolith

  • Greek rhēgos blanket –lith
    From American Heritage Dictionary of the English Language, 5th Edition
  • Irregular formation from Ancient Greek ῥῆγος (rhÄ“gos, “rug, blanket") + -lith (from λίθος (lithos, “stone")).
    From Wiktionary