leaching(1. The process of separating a liquid from a solid - as in waste liquid by percolation into the surrounding soil. 2. Extraction of soluble components of a solid mixture by percolating a solvent through it. 3. To lose or cause to lose soluble substances by the action of a percolating liquid)
estate rental(The service provided by an owner agreeing to grant the temporary possession of specific housing in return for the payment of rent from the tenant)