alluvium(redirected from Alluvial deposits)
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Related to Alluvial deposits: Lacustrine deposits
n. pl. al·lu·vi·ums or al·lu·vi·a (-vē-ə)
Sediment deposited by flowing water, as in a riverbed, flood plain, or delta. Also called alluvion.
[Medieval Latin, flood, from neuter of Latin alluvius, alluvial, from alluere, to wash against; see alluvion.]
n, pl -viums or -via (-vɪə)
(Geological Science) a fine-grained fertile soil consisting of mud, silt, and sand deposited by flowing water on flood plains, in river beds, and in estuaries
[C17: from Latin; see alluvion]
al•lu•vi•um(əˈlu vi əm)
n., pl. -vi•ums, -vi•a (-vi ə)
1. a deposit of sand, mud, etc., formed by flowing water.
2. the sedimentary matter deposited thus within recent times, esp. in the valleys of large rivers.
[1655–65; < Latin, n. use of neuter of alluvius washed against]
Sand, silt, mud, or other matter deposited by flowing water, as in a riverbed, floodplain, or delta.
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|Noun||1.||alluvium - clay or silt or gravel carried by rushing streams and deposited where the stream slows down|
delta - a low triangular area of alluvial deposits where a river divides before entering a larger body of water; "the Mississippi River delta"; "the Nile delta"
placer - an alluvial deposit that contains particles of some valuable mineral
alluvial soil - a fine-grained fertile soil deposited by water flowing over flood plains or in river beds
n → Anschwemmung f