alluvium
Longman Dictionary of Contemporary English 5++LDOCE 5++al·lu·vi·um /əˈluːviəm/ noun [uncountable] technical SGsoil left by rivers, lakes, floods etc 冲积层；冲积土
Examples from the Corpus
alluvium• The soils are developed on marine or estuarine alluvium found between the normal high-water mark and the limit of highest spring tides.• The soils are developed on freshwater alluvium.• Using open cut excavation where possible, Nuttall has moved about 26,000 cu m of alluvium and gravel.• Usually floodplains are not veneers of alluvium explicable by lateral channel movements, but considerable thicknesses smoothing over more complex relief.Origin alluvium (1600-1700) Late Latin Latin alluere, from ad- “against” + lavare “to wash”al·lu·vi·um nounChineseSyllable
floods soil etc by lakes, rivers, Corpus left
alluvium
al‧lu‧vi‧um /əˈluːviəm/
noun [uncountable] technical
al‧lu‧vi‧um /əˈluːviəm/
noun [uncountable] technical Date: 1600-1700
Language: Late Latin
Origin: Latin alluere, from ad- 'against' + lavare 'to wash'
soil left by rivers, lakes, floods etc
Language: Late Latin
Origin: Latin alluere, from ad- 'against' + lavare 'to wash'