astrophysics
n. C1 Advanced US //ˌæstɹoʊˈfɪzɪks// UK //ˌæstɹəfˈɪzɪks// as·tro·physics
n. the study of the physical processes that happen in space. It looks at things like stars, planets, and galaxies to understand how they work.
n. the branch of astronomy that applies the laws of physics to the study of celestial objects and phenomena.
She wants to study astrophysics at university.
The university offers a specialized degree in astrophysics for students interested in the physics of the universe.
Modern astrophysics relies heavily on high-powered telescopes and complex computer models to simulate the behavior of black holes and the expansion of the universe.
From astro- + physics.