noun
- an area of low-lying ground adjacent to a river, formed mainly of river sediments and subject to flooding
Usage: geography; geology
Examples
- The ancient city was built on a fertile floodplain beside the river.
- Heavy rains caused the river to overflow onto the floodplain.
- Farmers have cultivated the rich soil of the floodplain for centuries.
- The floodplain provides important habitat for wildlife.
- New housing developments should avoid building on the floodplain.
- The floodplain acts as a natural buffer during periods of high water.