/ Dictionary / Index H hydrometallurgy: Meaning and Definition of Find definitions for: hy•dro•met•al•lur•gy Pronunciation: (hī"dru-met'l-ûr"jē), [key] — n. the technique or process of extracting metals at ordinary temperatures by leaching ore with liquid solvents. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydromel hydrometeor Related Content Daily Word Quiz: voracious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language