- 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
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. 2018
- 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
- 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
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