銀ぎん河が帝てい国こく

noun

galactic empire

Used in science fiction to refer to a vast interstellar empire spanning a galaxy.

• そのSF小しょう説せつでは、銀ぎん河が帝てい国こくが崩ほう壊かいしつつある。

  In that science fiction novel, the galactic empire is collapsing.