Found 2 items, similar to alluvium.
English → English (WordNet) Definition: alluvium alluvium n : clay or silt or gravel carried by rushing streams and deposited where the stream slows down [syn: alluvial sediment , alluvial deposit, alluvion] [also: alluvia (pl)]
English → English (gcide) Definition: Alluvium Alluvium \Al*lu"vi*um\, n.; pl. E. Alluviums, L. Alluvia. [L., neut. of alluvius. See Alluvious.] (Geol.) Deposits of earth, sand, gravel, and other transported matter, made by rivers, floods, or other causes, upon land not permanently submerged beneath the waters of lakes or seas. --Lyell. [1913 Webster]