astrophysics
Concise Oxford English Dictionary © 2008 Oxford University Press:
astrophysics/astrəʊˈfɪzɪks/
▶plural noun [treated as sing.] the branch of astronomy concerned with the physical nature of stars and other celestial bodies, and the application of the laws and theories of physics to the interpretation of astronomical observations.
– derivatives
astrophysical adjective,
astrophysicist noun.
astrophysical adjective,
astrophysicist noun.
'astrophysics' also found in these Oxford entries:
