Definition of 'alluvion'

Noun

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

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