sediment
🇺🇸
/ˈsedɪmənt/
🇬🇧
/ˈsedɪmənt/
Solid particles that sink to the bottom of a liquid after it has become still.
After the water in the glass became still, the sediment settled at the bottom.
Small rocks, sand, or mud that is carried by water or wind and then deposited in a new location.
The river's sediment built up over time, forming a new island.