gneiss
n.（名词）A banded or foliated metamorphic rock, usually of the same composition as granite.片麻岩：层状或叶片状变质岩，成分通常与花岗岩相同
来源：German Gneis 德语 Gneis probably alteration of Middle High German gneist [spark (from its appearance)] 可能为 中古高地德语 gneist的变化 [火花（从它的表面）] from Old High German gneisto 源自 古高地德语 gneisto
【引伸】
gneiss.ic
