Definition of 'alluvion'
- gradual formation of new land, by recession of the sea or deposit of sediment
- the rising of a body of water and its overflowing onto normally dry land; "plains fertilized by annual inundations"
Synonyms: flood inundation deluge
- clay or silt or gravel carried by rushing streams and deposited where the stream slows down
Synonyms: alluvial sediment alluvial deposit alluvium