from The Century Dictionary.

  • In chem., pertaining to or derived from the combination of hydrogen and cyanogen.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Chem.) Pertaining to, or derived from the combination of, hydrogen and cyanogen.
  • adjective (Chem.) a colorless, mobile, volatile liquid, HCN, having a characteristic peach-blossom odor. It is one of the most deadly poisons. It is made by the action of sulphuric acid on yellow prussiate of potassium (potassium ferrocyanide), and chemically resembles hydrochloric and hydrobromic acids. Called also prussic acid, hydrogen cyanide, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Of or pertaining to hydrocyanic acid or its compounds


from Wiktionary, Creative Commons Attribution/Share-Alike License

From hydrogen + cyanide


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  • Fresh cassava roots contain a poisonous substance called hydrocyanic acid.

    Chapter 4 1995

  • Under the proper conditions carbon unites with nitrogen and hydrogen to form the acid HCN, called hydrocyanic acid.

    An Elementary Study of Chemistry William McPherson

  • It was a medicine called the hydrocyanic or prussic acid.

    Confession, or, the Blind Heart; a Domestic Story William Gilmore Simms 1838

  • The following are empirical laws still waiting to be resolved into the simpler laws from which they are derived: the local laws of the flux and reflux of the tides in different places; the succession of certain kinds of weather to certain appearances of sky; the apparent exceptions to the almost universal truth that bodies expand by increase of temperature; the law that breeds, both animal and vegetable, are improved by crossing; that gases have a strong tendency to permeate animal membranes; that substances containing a very high proportion of nitrogen (such as hydrocyanic acid and morphia) are powerful poisons; that when different metals are fused together the alloy is harder than the various elements; that the number of atoms of acid required to neutralize one atom of any base is equal to the number of atoms of oxygen in the base; that the solubility of substances in one another depends, (171) at least in some degree, on the similarity of their elements.

    A System Of Logic, Ratiocinative And Inductive John Stuart Mill 1839

  • Webelements periodic table says that it is 250 billion times more toxic than hydrocyanic acid.

    Radioisotopes in medicine 2009

  • The observer cannot know whether or not an atom of the substance has decayed, and consequently, cannot know whether the vial has been broken, the hydrocyanic acid released, and the cat killed.

    The Sopranos Finale Was a Huge Pile of | Best Week Ever 2007

  • It is said that the cause of the rapid effects of hydrocyanic acid is that the pain is so great as to be unbearable by the powers of vitality.

    The physiology of taste; or Transcendental gastronomy. Illustrated by anecdotes of distinguished artists and statesmen of both continents by Jean Anthelme Brillat-Savarin. Translated from the last Paris edition by Fayette Robinson. 2004

  • However, due to hydrocyanic acid toxicity A. leucophloea should not be used as a sole feed

    Chapter 10 1996

  • We asked David Kennedy with Leaf for Life for his perspective on using dried cassava leaves as a food, since cassava contains substances that produce hydrocyanic acid (HCN) when fresh leaves are eaten or pulverized.

    Chapter 25 1996

  • The samples did contain hydrocyanic glucosides and oxalates.

    Chapter 25 1996


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