alluvial
/əˈluːviəl/
adjective
- Relating to or made of sand, soil, or mud that is deposited by flowing water, such as rivers or floods.
- The flood left behind a thick layer of alluvial sediment on the fields.
- Gold is sometimes found in alluvial deposits along riverbeds.
- The alluvial soil in the valley is very fertile for farming.
Synonyms