LEACH

see: leech II. verb Etymology: ~ vessel through which water is passed to extract lye Date: 1796 transitive verb to dissolve out by the action of a percolating liquid , to subject to the action of percolating liquid (as water) in order to separate the soluble components, 3. to remove (nutritive or harmful elements) from soil by percolation, to draw out or remove as if by percolation , intransitive verb to pass out or through by percolation, ~ability noun ~able adjective ~er noun