Definition of supergalactic in English:

supergalactic

adjective

Astronomy
  • Of or relating to a supergalaxy; that is, or is on, a scale larger than that of a galaxy.

Origin

1930s. From super- + galactic, after supergalaxy.

Pronunciation

supergalactic

/ˌsjuːpəɡəˈlaktɪk//ˌsuːpəɡəˈlaktɪk/