noun
- the entire system of galaxies; the universe as a whole
Usage: astronomy
Examples
- Astronomers study the structure and evolution of the metagalaxy.
- The metagalaxy contains billions of individual galaxies.
- Scientists estimate the age of the metagalaxy to be approximately 13.8 billion years.
- Dark matter plays a crucial role in the formation of the metagalaxy.
- The expansion of the metagalaxy continues to accelerate.
- Radio telescopes help us observe distant regions of the metagalaxy.