alluvium alluvious • alluviums · · · Info · Definitions · Synonyms · Characters · · alluvium · · Text Latin · · Script 8 · · Length 4 · · Syllables Definitions · · · (noun) clay or silt or gravel carried by rushing streams and deposited where the stream slows down. Synonyms: alluvial sediment, alluvial deposit, alluvion. · · Noun Definition 1 Synonyms · · · alluvial sediment · · Synonym 1 alluvial deposit · · Synonym 2 alluvion · · Synonym 3 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D u latin small letter u U+0075 v latin small letter v U+0076