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prussic acid

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈprʌsɪk/


WordReference Random House Unabridged Dictionary of American English © 2026
prus′sic ac′id, [Chem.]
  1. ChemistrySee hydrocyanic acid. 
  • 1780–90; translation of French acide prussique (equivalent. to Prusse Prussia + -ique -ic); so called because it was first obtained by heating Prussian blue with sulfuric acid

Collins Concise English Dictionary © HarperCollins Publishers::
prussic acid /ˈprʌsɪk/ n
  1. the weakly acidic extremely poisonous aqueous solution of hydrogen cyanide
Etymology: 18th Century: from French acide prussique Prussian acid, so called because obtained from Prussian blue
'prussic acid' also found in these entries (note: many are not synonyms or translations):

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