regolith

Pronunciation: /ˈɹɛɡəlɪθ/

The English word “regolith” has 1 meaning listed here.

noun

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. Submarine regolith also exists.

Irregular formation from Ancient Greek ῥῆγος (rhêgos, “rug, blanket”) + -lith (from λίθος (líthos, “stone”)).

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.