English

Adjective

gneissic ‎(not comparable)

1. (geology) of or relating to gneiss
   • 1921, C. K. Leith, The Economic Aspect of Geology:

     The development of the schistose or gneissic structure is accompanied by the recrystallization of the rock materials, producing new minerals of a platy or columnar type adapted to this parallel arrangement.