regolith
Pronunciation: [ˈrɛɡ.ə.lɪθ]
Word
Context: "geology"
(noun) the layer of loose material on the surface of a planet or moon, like soil or dust. It’s what you would see when you look at the ground on other planets, where rocks and dust are piled up.
Example
The regolith on the Moon is made up of fine dust and small rocks.
Example
Unlike Earth, the regolith on Mars does not support many plants.
Example
What is the main component of the regolith found on the Moon?
Context: "planetary sciences"
(noun) the layer of loose debris that covers solid bedrock on celestial bodies. It’s a mix of dust, soil, and broken rocks on a planet’s surface.
Example
Scientists study the regolith of asteroids to learn more about their history.
Example
There is very little regolith on comets, making them hard to explore.
Example
How thick is the regolith on different asteroids?
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