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R_______
Definitions
Loose dust, soil, and broken rock covering solid rock on a planet or moon.
Word origin
Irregular formation from Ancient Greek ῥῆγος (rhêgos, “rug, blanket”) + -lith (from λίθος (líthos, “stone”)).
Used in a sentence
“The structures on the surface were gone from normal view, pulverized into regolith across a span of aeons.”
“The soil sample, called LZS-1, is the latest in a list of lunar regolith simulants of varying quality that have been developed to help Nasa and other space agencies around the world prepare for missions to the Moon.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
No curated clues for regolith yet.