Prussian red

noun

Potassium ferricyanide, K₃[Fe(CN)₆], a highly poisonous ferric crystal salt of potassium cyanide used as a pigment.

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Meanings

nounPrussian red (countable and uncountable, plural Prussian reds)

plural Prussian reds

  1. countableuncountablechemistryPotassium ferricyanide, K₃[Fe(CN)₆], a highly poisonous ferric crystal salt of potassium cyanide used as a pigment.
  2. countableuncountableThe colour of this compound: a hue of semi-dark brownish red
adjectivePrussian red (comparative more Prussian red, superlative most Prussian red)

comparative more Prussian red · superlative most Prussian red

  1. Of a brownish hue of red colour.

Origin

Discovered by Prussian chemist Leopold Gmelin.

Full word history & related roots →

Translations

Finnish preussinpunainen, preussinpunainen
  • preussinpunainenpigment
  • preussinpunainencolour
  • preussinpunainenof a hue of red
German Preußisch Rot, Preußisch Rot
  • Preußisch Rotpigment
  • Preußisch Rotcolour
Hindi प्रशियाई लाल
  • प्रशियाई लाल (praśiyāī lāl)colour
Hungarian poroszvörös
  • poroszvörösof a hue of red
Polish czerwień pruska, czerwień pruska
  • czerwień pruskapigment
  • czerwień pruskacolour
  • koloru pruskiej czerwieniof a hue of red

Rhymes & wordplay

Rhymes with Prussian red

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Cite this entry
APA

Prussian red. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Prussian%20red

MLA

“Prussian red.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Prussian%20red. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Prussian red,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Prussian%20red.

Source: Prussian red on Wiktionary, CC BY-SA 4.0.