Wiktionary
multigalactic
a. Of or relating to more than one galaxy.
Usage examples of "multigalactic".
This planet of Arrakis from which I direct my multigalactic Empire is no longer what it was in the days when it was known as Dune.
Sergei, on his right, exhaled sharply seconds later as the multigalactic dot abruptly winked out, eclipsed by the moon.