regolith
noun
reg·o·lith
ˈre-gə-ˌlith 
: unconsolidated residual or transported material that overlies the solid rock on the earth, moon, or a planet
Examples of regolith in a Sentence
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The moon has no atmosphere capable of supporting weather or snowfall and its surface is covered in regolith — fine jagged sharp rock material, far from optimal skiing conditions.
—
Daisy Dobrijevic, Space.com, 13 Feb. 2026
There’s regolith and a couple of Chinese landers—Chang’e 4 in January 2019 and Chang’e 6 in June 2024—and not much else.
—Harry Goldstein, IEEE Spectrum, 1 Feb. 2026
Elements from our planet’s atmosphere have made their way into moon dust, also called regolith, on a pathway created by the Earth’s magnetic field.
—Devika Rao, TheWeek, 27 Jan. 2026
The research sheds new light on a puzzle that has endured for over half a century since the Apollo missions brought back lunar samples with traces of substances such as water, carbon dioxide, helium and nitrogen embedded in the regolith — the moon’s dusty surface layer.
—Jacopo Prisco, CNN Money, 13 Jan. 2026
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Daisy Dobrijevic, Space.com, 13 Feb. 2026
There’s regolith and a couple of Chinese landers—Chang’e 4 in January 2019 and Chang’e 6 in June 2024—and not much else.
—Harry Goldstein, IEEE Spectrum, 1 Feb. 2026
Elements from our planet’s atmosphere have made their way into moon dust, also called regolith, on a pathway created by the Earth’s magnetic field.
—Devika Rao, TheWeek, 27 Jan. 2026
The research sheds new light on a puzzle that has endured for over half a century since the Apollo missions brought back lunar samples with traces of substances such as water, carbon dioxide, helium and nitrogen embedded in the regolith — the moon’s dusty surface layer.
—Jacopo Prisco, CNN Money, 13 Jan. 2026
See All Example Sentences for regolith
Cite this Entry
“Regolith.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/regolith. Accessed 14 Feb. 2026.
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