Meaning of pearl essence

pearl' es"sence

Pronunciation: [key]
  1. a lustrous, silvery-white substance obtained from the scales of certain fishes or derived synthetically, as from mercuric chloride: used chiefly in the manufacture of simulated pearls and as a pigment in lacquer
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.