← Dictionary

alluvial

/əˈluː.vi.əl/
IELTSAcademic
adjective

Alluvial means made by water carrying soil, sand, or mud and leaving it behind. It usually describes land, soil, or deposits near rivers.

  • Alluvial soil is very good for farming.
  • The village sits on an alluvial plain.
  • They found gold in alluvial deposits.

Adinary Nuance

Alluvial is more specific than "fertile" or "sandy." It describes material formed by flowing water, not just land that is good for growing crops. Writers use it in geography, farming, and geology when the river-made origin matters.

In other languages

Vietnamese
phù sa
Spanish
aluvial
Chinese
冲积的
Japanese
沖積の
Korean
충적의

Etymology

Alluvial comes from Latin alluvialis, from alluere meaning "to wash against." It entered English in the 17th century through scientific writing about rivers and land.

Common phrases

alluvial soilalluvial plainalluvial depositsalluvial gold

Synonyms

Related words

Frequently asked questions

Is alluvial a common everyday word?
No, it is more common in geography, farming, and academic writing.
What is the difference between alluvial and fertile?
Alluvial describes how the soil was formed. Fertile describes how well it supports plant growth.
Can I use alluvial for land near a river?
Yes, if the land or soil was made by river deposits.