What is the meaning of Detritus?

Pieces of rock broken off by ice, glacier, or erosion.

Organic waste material from decomposing dead plants or animals.

Any debris or fragments of disintegrated material.

Rock consisting of accumulated debris from decayed rocks, like sand, that often is joined by cement.

rubbed away, worn away, worn out, having been rubbed away

diminished in force, lessened, weakened, impaired, having been weakened

worn out, trite, hackneyed, having been worn out

The act of rubbing away

detritus

detritus

Source: wiktionary.org