lixiviate
Concise Oxford English Dictionary © 2008 Oxford University Press:
lixiviate /lɪkˈsɪvɪeɪt/
▶verb Chemistry, archaic separate (a substance) into soluble and insoluble constituents by percolation.
– derivatives
lixiviation noun.
lixiviation noun.
– origin C17: from mod. L. lixiviat-, lixiviare ‘impregnate with lye’.
'lixiviate' also found in these Oxford entries:

