Synonyms and Antonyms for extragalactic-nebula
1. extragalactic nebula (n.)
(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust
2. nebula (n.)
an immense cloud of gas (mainly hydrogen) and dust in interstellar space
5. nebula (n.)
a medicinal liquid preparation intended for use in an atomizer
