/ Dictionary / Index M metallic soap: Meaning and Definition of Find definitions for: metal'lic soap' Pronunciation: [key] any usually water-insoluble salt formed by the interaction of a fatty acid and a metal, esp. lead or aluminum: used chiefly as a drier in paints and varnishes and for waterproofing textiles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. metallic luster metallic wood-boring beetle Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language