| 释义 |
Definition of alluvium in English: alluviumnoun əˈl(j)uːvɪəməˈluviəm mass nounA deposit of clay, silt, and sand left by flowing floodwater in a river valley or delta, typically producing fertile soil. （尤指产生肥沃土壤的）冲积层，淤积层 Example sentencesExamples - The upper region of the Camargue, blessed with rich alluvium soil, has been cultivated since the Middle Ages.
- Many vineyards are located on valley bottoms underlain by alluvium which can provide deep, free-draining soils of variable grain size.
- 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.
Synonyms mud, muck, mire, ooze, silt, dirt, slime, slush, slurry
OriginMid 17th century: Latin, neuter of alluvius 'washed against', from ad- 'towards' + luere 'to wash'. Definition of alluvium in US English: alluviumnounəˈluviəməˈlo͞ovēəm A deposit of clay, silt, sand, and gravel left by flowing streams in a river valley or delta, typically producing fertile soil. （尤指产生肥沃土壤的）冲积层，淤积层 Example sentencesExamples - 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.
- Some of these low-lying areas, with waterlogged deposits blanketed by alluvium, have provided good evidence for Roman farming.
- The upper region of the Camargue, blessed with rich alluvium soil, has been cultivated since the Middle Ages.
- Many vineyards are located on valley bottoms underlain by alluvium which can provide deep, free-draining soils of variable grain size.
Synonyms mud, muck, mire, ooze, silt, dirt, slime, slush, slurry
OriginMid 17th century: Latin, neuter of alluvius ‘washed against’, from ad- ‘towards’ + luere ‘to wash’. |