Noun: alluvion u'loo-vee-un
- Gradual formation of new land, by recession of the sea or deposit of sediment
"The alluvion along the coastline created new areas for development"
- Clay, silt or gravel carried by rushing streams and deposited where the stream slows down
"The river delta was formed by centuries of alluvions";
- alluvial sediment, alluvial deposit, alluvium
- The rising of a body of water and its overflowing onto normally dry land
"plains fertilized by annual alluvions";
- flood, inundation, deluge
Derived forms: alluvions
Type of: deposit, geologic process, geological phenomenon, geological process, sediment
Encyclopedia: Alluvion