alluvion
(noun)
noun
1. gradual formation of new land, by recession of the sea or deposit of sediment
Definition categories: process
2. the rising of a body of water and its overflowing onto normally dry land
Similar word(s): deluge, flood, inundation
Definition categories: phenomenon
3. clay or silt or gravel carried by rushing streams and deposited where the stream slows down
Similar word(s): alluvium