astrophysics [astrophysics](interdisciplinary branch of astronomy and physics) noun [UK: ˌæ.strəʊ.ˈfɪ.zɪks] [US: ˌæstro.ʊ.ˈfɪ.zɪks]
astrofysiker [~n ~] substantiv {c}
astrophysicist [astrophysicists](one who studies astrophysics) noun [UK: ˌæ.strəʊ.ˈfɪ.zɪ.sɪt] [US: ˌæstro.ʊ.ˈfɪ.zɪ.sɪt]I once wanted to be an astrophysicist. = En gång ville jag bli astrofysiker.