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isocyanic acid

[ ahy-soh-sahy-an-ik, ahy-soh- ]

noun

, Chemistry.
  1. an unstable acid, CHNO, tautomeric with cyanic acid, known only in the form of its salts.


isocyanic acid

/ ˌaɪsəʊsaɪˈænɪk /

noun

  1. a hypothetical acid known only in the form of its compounds. Formula: HNCO
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of isocyanic acid1

First recorded in 1890–95; iso- + cyanic acid

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isocyanateisocyanide