leach

1
[ leech ]
/ litʃ /

verb (used with object)

to dissolve out soluble constituents from (ashes, soil, etc.) by percolation.
to cause (water or other liquid) to percolate through something.

verb (used without object)

(of ashes, soil, etc.) to undergo the action of percolating water.
to percolate, as water.

noun

Origin of leach

1
1425–75; late Middle English leche leachate, infusion, probably Old English *læc(e), *lec(e), akin to leccan to wet, moisten, causative of leak

Related forms

leach·a·ble, adjectiveleach·a·bil·i·ty, nounleach·er, nounun·leached, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for leaching

British Dictionary definitions for leaching (1 of 3)

Leach

/ (liːtʃ) /

noun

Bernard (Howell). 1887–1979, British potter, born in Hong Kong

British Dictionary definitions for leaching (2 of 3)

leach

1
/ (liːtʃ) /

verb

to remove or be removed from a substance by a percolating liquid
to lose or cause to lose soluble substances by the action of a percolating liquid

noun

the act or process of leaching
a substance that is leached or the constituents removed by leaching
a porous vessel for leaching

Derived Forms

leacher, noun

Word Origin for leach

C17: variant of obsolete letch to wet, perhaps from Old English leccan to water; related to leak

British Dictionary definitions for leaching (3 of 3)

leach

2
/ (liːtʃ) /

noun

a variant spelling of leech 2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for leaching

leaching

[ lēchĭng ]

n.

lixiviation

Related forms

leach v.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for leaching

leaching

[ lēchĭng ]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.