extragalactic nebula   (TTS Sound)

The extragalactic_nebula has 1 Senses.

• galaxy, extragalactic nebula
• 銀河, 天の川, ギャラクシー, 小宇宙, 星雲, 銀河系, 天の河
• (astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust; "`extragalactic nebula' is a former name for `galaxy'"
• 星系の集まり