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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Helium-3 is rare on terra firma, but is thought to be abundant in the regolith of the Moon.
—
Paul Ridden
may 27, New Atlas, 27 May 2025
So, to shed light on this process, Li Hsia Yeo, a planetary scientist at NASA's Goddard Space Flight Center in Maryland, led a lab experiment observing the effects of simulated solar wind on two samples of loose regolith brought to Earth by the Apollo 17 mission.
—Sharmila Kuthunur, Space.com, 25 Apr. 2025
The contact surface is wide like a snowshoe because the regolith is fluffy and volatile, with some steep inclines, so this will be needed to maintain traction.
—James Morris, Forbes.com, 12 Apr. 2025
Concentrated sunlight alone should provide enough heat to transform lunar regolith into glass.
—Paul Smaglik, Discover Magazine, 3 Apr. 2025
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Paul Ridden
may 27, New Atlas, 27 May 2025
So, to shed light on this process, Li Hsia Yeo, a planetary scientist at NASA's Goddard Space Flight Center in Maryland, led a lab experiment observing the effects of simulated solar wind on two samples of loose regolith brought to Earth by the Apollo 17 mission.
—Sharmila Kuthunur, Space.com, 25 Apr. 2025
The contact surface is wide like a snowshoe because the regolith is fluffy and volatile, with some steep inclines, so this will be needed to maintain traction.
—James Morris, Forbes.com, 12 Apr. 2025
Concentrated sunlight alone should provide enough heat to transform lunar regolith into glass.
—Paul Smaglik, Discover Magazine, 3 Apr. 2025
See All Example Sentences for regolith
Cite this Entry
“Regolith.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/regolith. Accessed 10 Jun. 2025.
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