less common spelling of leech
1
: either vertical edge of a square sail
2
: the after edge of a fore-and-aft sail
leached; leaching; leaches
1
: to dissolve out by the action of a percolating liquid
leach out alkali from ashes
2
: to subject to the action of percolating (see percolate sense 1a) liquid (such as water) in order to separate the soluble components
3
a
: to remove (nutritive or harmful elements) from soil by percolation (see percolate sense 1a)
soil leached of its salts by torrential rains
b
: to draw out or remove as if by percolation
all meaning has been leached from my life
: to pass out or through by percolation
Nutrients leached out of the soil with rainwater.
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Merriam-Webster unabridged
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