Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun alluvial_sediment
1 sense of alluvial sediment
Sense 1
alluvial sediment, alluvial deposit, alluvium, alluvion -- (clay or silt or gravel carried by rushing streams and deposited where the stream slows down)
=> sediment, deposit -- (matter that has been deposited by some natural process)