al·lu·vi·on /əˈluviən/
沙洲,沖積地,沖積地
Al·lu·vi·on n.
1. Wash or flow of water against the shore or bank.
2. An overflowing; an inundation; a flood.
3. Matter deposited by an inundation or the action of flowing water; alluvium.
The golden alluvions are there [in California and Australia] spread over a far wider space: they are found not only on the banks of rivers, and in their beds, but are scattered over the surface of vast plains. --R. Cobden.
4. Law An accession of land gradually washed to the shore or bank by the flowing of water. See Accretion.
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alluvion
n 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" [syn: flood, inundation, deluge]
3: clay or silt or gravel carried by rushing streams and
deposited where the stream slows down [syn: alluvial
sediment, alluvial deposit, alluvium]