cy·a·nite \ˈsīəˌnīt\noun alsoky·a·nite\ˈkī-\ (-s) Etymology: German zyanit, from zyan- cyan- + -it -ite : a mineral Al2SiO5 consisting of an aluminum silicate occurring commonly in blue thin-bladed triclinic crystals and crystalline aggregates — called also disthene • cy·a·nit·ic\|sīə|nid.ik\adjective