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hydrocyanic acid

The definition of hydrocyanic acid is a colorless, very poisonous liquid with the smell of bitter almonds.

(noun)

An example of hydrocyanic acid is cyanide.

See hydrocyanic acid in Webster's New World College Dictionary

a weak, highly poisonous acid, HCN, that is a colorless liquid with the odor of bitter almonds: it is used as a fumigant, poison gas, in metallurgy, etc.

See hydrocyanic acid in American Heritage Dictionary 4

noun

An aqueous solution of hydrogen cyanide. Also called prussic acid.

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