v.
1. tr. make (a liquid) percolate through some material.
2 tr. subject (bark, ore, ash, or soil) to the action of percolating fluid.
3 tr. & intr. (foll. by away, out) remove (soluble matter) or be removed in this way.
Derivatives:
leacher n.
Etymology: prob. repr. OE leccan to water, f. WG