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alluvion

Definitions of alluvion
  1. noun
    gradual formation of new land, by recession of the sea or deposit of sediment
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    type of:
    geologic process, geological process
    (geology) a natural process whereby geological features are modified
  2. noun
    clay or silt or gravel carried by rushing streams and deposited where the stream slows down
    synonyms: alluvial deposit, alluvial sediment, alluvium
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    types:
    delta
    a low triangular area of alluvial deposits where a river divides before entering a larger body of water
    placer
    an alluvial deposit that contains particles of some valuable mineral
    type of:
    deposit, sediment
    matter that has been deposited by some natural process
  3. noun
    the rising of a body of water and its overflowing onto normally dry land
    synonyms: deluge, flood, inundation
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    types:
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    debacle
    flooding caused by a tumultuous breakup of ice in a river during the spring or summer
    flash flood, flashflood
    a sudden local flood of great volume and short duration
    Noachian deluge, Noah and the Flood, Noah's flood, the Flood
    (Biblical) the great deluge that is said in the Book of Genesis to have occurred in the time of Noah; it was brought by God upon the earth because of the wickedness of human beings
    floodhead
    a wall of water rushing ahead of the flood
    type of:
    geological phenomenon
    a natural phenomenon involving the structure or composition of the earth
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