leaching

(noun) the process of leaching. Synonyms: leach.

(verb) cause (a liquid) to leach or percolate. Synonyms: leach.

(verb) permeate or penetrate gradually. Synonyms: leach, percolate. Example: "The fertilizer leached into the ground."

(verb) remove substances from by a percolating liquid. Synonyms: leach, strip. Example: "Leach the soil."