cosmological
/ˌkɑzməˈlɑdʒɪkəl/
adjective
- Relating to the study of the origin, structure, and evolution of the universe.
- She is reading a book about cosmological questions like the age of the universe.
- The cosmological theory explains how galaxies formed after the Big Bang.
- New telescopes provide data that refine our cosmological models.
Synonyms