Lixiviate :: Lixiviate (v. t.) To subject to a washing process for the purpose of separating soluble material from that which is insoluble; to leach, as ashes, for the purpose of extracting the alkaline substances..
Lixiviation :: Lixiviation (n.) Lixiviating; the process of separating a soluble substance form one that is insoluble, by washing with some solvent, as water; leaching..