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Prussian blue noun

  • (inorganic compound) An insoluble dark, bright blue pigment, ferric ferrocyanide (equivalent to ferrous ferricyanide), used in painting and dyeing, and as an antidote for certain kinds of heavy metal poisoning.
Berliner Blau, Preußisch Blau
  • A moderate to rich blue colour, tinted with deep greenish blue.
Berliner Blau, Preußischblau
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