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
Recent Examples on the Web
Actual regolith may react quite differently than our simulants.
—
Sven Bilén, The Conversation, 13 Mar. 2025
The fluff layer’s poor thermal conductivity also means that heat has a hard time propagating downward into the lunar regolith.
—Tom Hawking, Popular Science, 6 Mar. 2025
Here’s how lunar explorers will mine the regolith to make rocket fuel
David Schneider
09 Jul 2019
1 min read
The most valuable natural resource on the moon may be water.
—IEEE Spectrum, 9 July 2019
Blue Ghost is carrying 10 NASA payloads, which will study the other lunar radiation environment, the lunar regolith and the solar wind, among other tasks.
—Mike Wall, Space.com, 27 Feb. 2025
See All Example Sentences for regolith
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Sven Bilén, The Conversation, 13 Mar. 2025
The fluff layer’s poor thermal conductivity also means that heat has a hard time propagating downward into the lunar regolith.
—Tom Hawking, Popular Science, 6 Mar. 2025
Here’s how lunar explorers will mine the regolith to make rocket fuel
David Schneider
09 Jul 2019
1 min read
The most valuable natural resource on the moon may be water.
—IEEE Spectrum, 9 July 2019
Blue Ghost is carrying 10 NASA payloads, which will study the other lunar radiation environment, the lunar regolith and the solar wind, among other tasks.
—Mike Wall, Space.com, 27 Feb. 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 4 Apr. 2025.
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