adjective
- relating to or composed of alluvium (fine sediment deposited by flowing water)
Usage: commonly used in geology and geography
Examples
- The river deposited alluvial soil across the floodplain.
- Alluvial plains are fertile areas ideal for agriculture.
- Gold miners often search for nuggets in alluvial deposits.
- The delta formed from alluvial material carried downstream.
- Alluvial fans spread sediment at the base of mountains.