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.
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
1425–75; late Middle English leche leachate, infusion, probably Old English *læc(e), *lec(e), akin to leccan to wet, moisten, causative of leak
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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
C17: variant of obsolete letch to wet, perhaps from Old English leccan to water; related to leak
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
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.
Online Etymology Dictionary, © 2010 Douglas Harper