# astrophysicist

/ˌæstɹoʊˈfɪsɪsɪst/ (US) · /ˌæstɹəfˈɪzɪsˌɪst/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/astrophysicist
Updated: 2026-10-18

## Definition

a scientist who studies stars, planets, and how the universe works. You hear from them when they explain black holes or space missions.

For teachers: a specialist in astrophysics who researches the physical nature and behaviour of stars, galaxies, and other cosmic phenomena. Applies the laws of physics to interpret astronomical observations.

## Examples

- The astrophysicist studies stars and black holes.
- The astrophysicist explains the new telescope images during a public talk at the museum.
- The astrophysicist models how early galaxies formed, combining telescope data with complex computer simulations.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.