Astrophysics

//ˌæs.tɹoʊˈfɪz.ɪks// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    The branch of astronomy or physics that deals with the physical properties of celestial bodies and with the interaction between matter and radiation in celestial bodies and in the space between them. uncountable

    "The fact is, dark energy is the biggest mystery in science. It has driven a huge amount of research in the past decade, and was a key driver in last year’s “New Worlds, New Horizons” report from the National Academies of Science, which prioritized future astronomy and astrophysics projects."

  2. 2
    the branch of astronomy concerned with the physical and chemical properties of celestial bodies wordnet

Synonyms

All synonyms
acousticsaerophysicsapplied physicsastrogeologyastrognosyastrography

Example

More examples

"Yana studies astrophysics in Yekaterinburg."

Etymology

From astro- + physics.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.