Definitions

1. noun

A hypothetical higher-level structure encompassing multiple galaxies.

“The discovery of a new galaxy cluster has led scientists to speculate about the existence of a metagalaxy.”

2. noun

A term used to describe a universe beyond the observable universe, including multiple universes or parallel universes.

“The concept of a metagalaxy has been debated among cosmologists as a potential explanation for dark matter and dark energy.”