alluvium

n. 冲积层, 淤积层 [机] 冲积层

发音

US

词形变化

alluvia alluviums 复数 alluviums alluvia 复数

释义与例句

n.
  1. 1.

    soil, clay, silt or gravel deposited by flowing water, as it slows, in a river bed, delta, estuary or flood plain

    冲积层

词汇关系

名词

同义词 1

alluvion

上位词 2

deposit sediment

下位词 2

delta placer

词源

From Medieval Latin alluvium (“matter deposited by flowing water”), neuter of alluvius (“deposited by a river”), from Latin alluviō (“washing upon, overflowing”).

来源：wiktionary