What does "alluvial sediment" mean?

clay or silt or gravel carried by rushing streams and deposited where the stream slows down

What is a synonym for "alluvial sediment"?

Common synonyms include: alluvia, alluvial deposit, alluvion, alluvium.

Rare ·Advanced level

Noun

1
clay or silt or gravel carried by rushing streams and deposited where the stream slows down wordnet