Of, or derived from prussic acid; hydrocyanic(adjective)
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Use "prussic" in a sentence
"Though we call prussic acid the agent of a person’s death, the whole of the vital and organic properties of the patient are as actively instrumental as the poison, in the chain of effects which so rapidly terminates his sentient existence."
""But there is another peculiarity of this family of trees which is not so innocent, and that is that in the fruit-kernel, and also in the leaves, there is a deadly poison called prussic acid.""
"It dissolves readily in water, its solution being commonly called prussic acid."