You searched for: “regolith
mantle rock, regolith
1. The layer of loose rock resting on bedrock, constituting the surface of most land.
2. The layer of disintegrated and decomposed rock fragments; including soil, just above the solid rock of the earth's crust.
Word Entries at Get Words: “regolith
regolith (s) (noun), regoliths (pl)
The topmost layer of the Moon and arth-like planets, which has been broken up by meteoric bombardment: The regolith consists of loose rocks, dust, sand, and / or soil and is found on the bedrock or surface layer of most dry land on the Earth, Moon and other celestial objects.
This entry is located in the following unit: Astronomy and related astronomical terms (page 22)