Definitions

1. noun

a layer or deposit of loose, fragmented rock and mineral particles that cover the Earth’s surface, typically found on planets, moons, and asteroids.

“The regolith on the surface of the asteroid provided valuable insights into its geological history.”

2. noun

a layer of loose, fragmented rock and soil that covers the surface of the ground.

“The regolith on the hillside was prone to erosion during heavy rainfall.”