definition of
alluvion

[1] #1 alluvion n. gradual formation of new land, by recession of the sea or deposit of sediment. wn

[2] #2 alluvion n. [flood, inundation, deluge] the rising of a body of water and its overflowing onto normally dry land; "plains fertilized by annual inundations". wn

[3] #3 alluvion n. [alluvial sediment, alluvial deposit, alluvium] clay or silt or gravel carried by rushing streams and deposited where the stream slows down. wn