1. the layer of loose rock fragments, soil, and dust that covers solid bedrock on a planet’s surface
Usage: geological

Examples

• The lunar regolith is made up of fine dust and rock fragments created by meteorite impacts.
• Scientists studied samples of Martian regolith to understand the planet’s geological history.
• Earth’s regolith includes soil, sand, and broken rock pieces that have weathered over time.
• The astronauts collected regolith samples from the moon’s surface during their mission.
• Wind and water help create regolith by breaking down solid rock into smaller particles.
• The thickness of regolith varies greatly depending on the age and climate of the surface.