eluviation

noun

elu·​vi·​a·​tion (ˌ)ē-ˌlü-vē-ˈā-shən 

: the transportation of dissolved or suspended material within the soil by the movement of water when rainfall exceeds evaporation

eluvial

ē-ˈlü-vē-əl 

adjective

eluviated

ē-ˈlü-vē-ā-təd 

adjective

Word History

Etymology

eluvial of eluviation (from e- + -luvial—as in alluvial) + -ation

First Known Use

1899, in the meaning defined above