filtration

syn. percolation 

(1) Process of passing a liquid through a filtering medium for the removal of suspended or colloidal matter.

(2) Flow of a liquid through an unsaturated porous medium, e.g. of water in soil, under the action of gravity.

 

Source:

UNESCO/WMO International Glossary of Hydrology (2nd revised ed., 1992)

Posted on February 17, 2014 .