Definition of astroparticle physics in English:

astroparticle physics

noun

Astronomy
  • The branch of physics concerned with subatomic particles of cosmic origin and their relevance to astrophysics and cosmology.

Origin

1980s. From astro- + particle physics.

Pronunciation

astroparticle physics

/ˌastrə(ʊ)ˌpɑːtɪkl ˈfɪzɪks/