salmiacMin.|ˈsælmɪæk| Also 8 sælmiak. [a. G. salmiak, contraction of L. sal ammoniacum.] Native sal-ammoniac. 1799W. Tooke View Russian Emp. I. 198 Large lumps of sulphur and salmiak.1888Encycl.Brit. XVI. 384, art.Mineralogy, Salmiac... A sublimate on active volcanoes.