alluvium
al.lu.vi.um \*-'lu:-ve--*m\ \-ve--*\ n or alluviums or al.lu.via [LL, neut. of alluvius alluvial, fr. L alluere] pl : clay, silt, sand, gravel, or similar detrital material deposited by runn ing water
al.lu.vi.um \*-'lu:-ve--*m\ \-ve--*\ n or alluviums or al.lu.via [LL, neut. of alluvius alluvial, fr. L alluere] pl : clay, silt, sand, gravel, or similar detrital material deposited by runn ing water