Comment prononcer "extragalactic nebula"

• "extragalactic nebula" prononcé en Anglais.

Signification et définition de "extragalactic nebula"

Noun

(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'"

Synonymes:

• galaxy
• extragalactic nebula