the technique or process of extracting metals at ordinary temperatures by leaching ore with liquid solvents.
Origin of hydrometallurgy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a technique for the recovery of a metal from an aqueous medium in which the metal or the gangue is preferentially dissolved
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012