prussic-acid

prussic acid

noun Chemistry.

Origin:
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

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World English Dictionary
prussic acid (ˈprʌsɪk)
 
n
the weakly acidic extremely poisonous aqueous solution of hydrogen cyanide
 
[C18: from French acide prussique Prussian acid, so called because obtained from Prussian blue]

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American Heritage
Medical Dictionary

prussic acid prus·sic acid (prŭs'ĭk)
n.
See hydrocyanic acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
prussic acid   (prŭs'ĭk)  Pronunciation Key 
See hydrocyanic acid.
The American Heritage® Science Dictionary
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