pearl essence
noun
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 (pearl lacquer).
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Origin of pearl essence
First recorded in 1920–25
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019