| 单词 | alluvion | 
| 释义 | Word Frequency alluvion(əˈluːvɪən) noun 1.  a.  the wash of the sea or of a river b.  an overflow or flood  c.  matter deposited as sediment; alluvium  2.  law the gradual formation of new land, as by the recession of the sea or deposit of sediment on a riverbed Word origin C16: from Latin alluviō an overflowing, from luere to wash | 
	
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