- to dissolve out soluble constituents from (ashes, soil, etc.) by percolation.
- to cause (water or other liquid) to percolate through something.
- (of ashes, soil, etc.) to undergo the action of percolating water.
- to percolate, as water.
- the act or process of leaching.
- a product or solution obtained by leaching; leachate.
- the material leached.
- a vessel for use in leaching.
Origin of leach1
Examples from the Web for leaching
Contemporary Examples of leaching
I submit that a regular program of interaction would go miles in leaching partisan poison from the well in Washington.Grill Him Again!
February 3, 2010
Historical Examples of leaching
One cause that appears obvious and easy of acceptance is leaching.
Water undermines by washing away the softer parts and by leaching.The Rocky Mountain Wonderland
Enos A. Mills
This leaching process concentrates these minerals as ore that can be mined.Deserts
A. S. Walker
A good illustration of leaching is found in the manufacture of potash.
It in part prevents the leaching out of the soluble parts of the ash.
- Bernard (Howell). 1887–1979, British potter, born in Hong Kong
- the act or process of leaching
- a substance that is leached or the constituents removed by leaching
- a porous vessel for leaching
Word Origin for leach
- a variant spelling of leech 2
Old English leccan "to moisten, water, wet, irrigate," (see leak). The word disappears, then re-emerges late 18c. in a technological sense in reference to percolating liquids. Related: Leached; leaching.
- The removal of soluble material from a substance, such as soil or rock, through the percolation of water. Organic matter is typically removed from a soil horizon and soluble metals or salts from a rock by leaching. Leaching differs from eluviation in that it affects soluble, not suspended, material and often results in the complete removal of the material from the soil or rock.