a. [f. the initial letters of c-arbon, hy-drogen, and az-ote + -IC.] Chem. in Chyazic Acid: an old name of Prussic acid.
1819. J. G. Children, Chem. Anal., 325. Sulphocyanic acid was discovered by Mr. Porrett in 1808 … but in 1814, he published a more detailed account of its properties under the name of sulphuretted chyazic acid.
1847–9. Todd, Cycl. Anat., IV. 417/2. The sulphuretted Chyazic acid of Porrett.
