alluvial sediment

Noun
  1. Clay or silt or gravel carried by rushing streams and deposited where the stream slows down (synset 109216160)
    is a type of: deposit, sediment - matter that has been deposited by some natural process
    subtypes:
    • 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
    substance holonym: alluvial soil - a fine-grained fertile soil deposited by water flowing over flood plains or in river beds
    same as: alluvial deposit, alluvion, alluvium

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