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leach
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As a noun, leach means a quantity of wood ashes, through which water passes, and thus imbibes the alkali. As a verb, it means purge a soluble matter out of something by the action of a percolating fluid.
Meanings of leach
8 meaningsnoun
A quantity of wood ashes, through which water passes, and thus imbibes the alkali.
A tub or vat for leaching ashes, bark, etc.
A jelly-like sweetmeat popular in the fifteenth century.
Alternative spelling of leech.
verb
To purge a soluble matter out of something by the action of a percolating fluid.
“Heavy rainfall can leach out minerals important for plant growth from the soil.”
To part with soluble constituents by percolation.
“The gangue was leached to recover minerals left behind by the original technology.”
Cause (a liquid) to leach or percolate
Meanings from Wiktionary (CC BY-SA 4.0) and Open English WordNet (CC BY 4.0).