Definition of astrophysics noun from the Oxford Advanced American Dictionary

 

astrophysics

 noun
noun
NAmE//ˌæstroʊˈfɪzɪks//
 
[uncountable]
 
jump to other results
the scientific study of the physical and chemical structure of the stars, planets, etc.
astrophysicist
 
jump to other results
NAmE//‑ˈfɪzəsɪst//
 
noun
See the Oxford Advanced Learner's Dictionary entry: astrophysics