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Meaning of metallic soap

metal'lic soap'

Pronunciation: [key]
  1. 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.