Also found in: Thesaurus, Medical, Idioms, Encyclopedia, Wikipedia.
Related to leaching: Heap leaching


v. leached, leach·ing, leach·es
1. To remove soluble or other constituents from by the action of a percolating liquid: heavy rains that leached the soil of minerals.
2. To remove from a substance by the action of a percolating liquid: acids in groundwater that leach calcium out of the bedrock.
3. To empty; drain: "a world leached of pleasure, voided of meaning" (Marilynne Robinson).
To be dissolved or passed out by a percolating liquid.
1. The act or process of leaching.
2. A porous, perforated, or sievelike vessel that holds material to be leached.
3. The substance through which a liquid is leached.

[From Middle English leche, leachate, from Old English *lece, muddy stream; akin to leccan, to moisten.]

leach′a·bil′i·ty n.
leach′a·ble adj.
leach′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. A process by which soluble constituents of soil are removed by liquid passing through it.
2. The loss of soluble nutrients from soil or compost.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.leaching - the process of leaching
natural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Heap leaching works by drip-feeding acid through a large stockpile (or heap) of ore to leach out metals.
Ion-adsorption rare earth ore, also known as weathering shell leaching rare earth ore, was first discovered in a foot cave in Longnan County, Jiangxi Province, in the late 1960s.
However, the uranium leaching efficiency generally decreased with the increase of combustion temperature and time [8].
A detailed investigation of the leaching process with these microorganisms was conducted.
Recent studies have concentrated on the release of heavy metal elements in soil, sludge, dust, and other solid media and the influence of a range of factors on waste leaching patterns [5, 7-14].
Abstract: The response of different metals such as Zn, Fe, Pb, Cr and Mn during leaching of Electric Arc Furnace (EAF) dust in acid medium has been investigated.
Applied nitrogen fertilizer should not contribute to contaminate groundwater, so using appropriate levels of nitrogen fertilizer is necessary to both supply crop need and mitigate nitrogen leaching and other nitrogen losses ways.
This Pan project is a low cost, oxidized, Carlin-style gold deposit mineable by shallow open pit methods and treatable by heap leaching. A feasibility study was completed in November 2011.
Heap leaching is usually used to extract uranium from low grade ore of which the uranium content is too low to be economically processed in a uranium mill.
Perth, Australia, Feb 15, 2012 - (ABN Newswire) - Further leaching efficiency has been achieved for Resource Mining Corporation's (ASX:RMI) new green-tech nickel recovery process as latest test work continues to optimize the leaching parameters.