Definition of alluvium in English:

alluvium

noun

  • A deposit of clay, silt, sand, and gravel left by flowing streams in a river valley or delta, typically producing fertile soil.

    • ‘Many vineyards are located on valley bottoms underlain by alluvium which can provide deep, free-draining soils of variable grain size.’
    • ‘The upper region of the Camargue, blessed with rich alluvium soil, has been cultivated since the Middle Ages.’
    • ‘Some of these low-lying areas, with waterlogged deposits blanketed by alluvium, have provided good evidence for Roman farming.’
    • ‘In the east, which is lower and flatter, river gravels and alluvium from the North Sea have produced dark, rich soils.’
    • ‘The measured soil parameters at the sites were within the normal range for bottomland hardwood soils of Mississippi River alluvium.’
    mud, muck, mire, ooze, silt, dirt, slime, slush, slurry
    View synonyms

Origin

Mid 17th century: Latin, neuter of alluvius ‘washed against’, from ad- ‘towards’ + luere ‘to wash’.

Pronunciation

alluvium

/əˈlo͞ovēəm//əˈluviəm/