regolith

About 0.13 uses per million words.

Meaning

1. noun The layer of loose rock, dust, sand, and soil, resting on the bedrock, that constitutes the surface layer of most dry land on Earth, the Moon, and other large solid aggregated celestial objects. Submarine regolith also exists.

Similar words

megaregolith moondust baserock bedrock host rock regosol rimrock mudrock rock lunarite

Often followed by

and is of in on that or to at

Word family

regoliths