hydrocyanic acid

noun
hy·dro·cy·an·ic acid | \ˌhī-drō-sī-ˈa-nik- \

Definition of hydrocyanic acid 

: an aqueous solution of hydrogen cyanide HCN that is a poisonous weak acid and is used chiefly in fumigating and in organic synthesis

First Known Use of hydrocyanic acid

1816, in the meaning defined above

History and Etymology for hydrocyanic acid

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The first known use of hydrocyanic acid was in 1816

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hydrocyanic acid

noun
hy·dro·cy·an·ic acid | \ˌhī-drō-sī-ˌan-ik- \

Medical Definition of hydrocyanic acid 

: an aqueous solution of hydrogen cyanide HCN that is an extremely poisonous weak acid used especially in fumigating

called also prussic acid

More from Merriam-Webster on hydrocyanic acid

Britannica.com: Encyclopedia article about hydrocyanic acid

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