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regolith

[ reg-uh-lith ]

regolith

/ ˈrɛɡəlɪθ /

noun

  1. the layer of loose material covering the bedrock of the earth and moon, etc, comprising soil, sand, rock fragments, volcanic ash, glacial drift, etc

regolith

/ rĕg′ə-lĭth′ /

  1. 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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Word History and Origins

Origin of regolith1

1895–1900; < Greek rhêgo ( s ) rug, blanket + -lith

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Word History and Origins

Origin of regolith1

C20: from Greek rhēgos covering, blanket + lithos stone

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