Astrophysicist
/ˌæs.trəˈfɪz.ɪ.sɪst/
Synonyms
- astronomer
- celestial physicist
- cosmologist
Slang Meanings
star nerd
He's such a star nerd; he spends all his time studying astrophysics.
space geek
Don't mind her, she's just a space geek fascinated by astrophysics.