# Fermi bubble

> English word · Noun

## Definitions
1. A region of the galaxy, rich in gamma rays, thought to be caused by the central supermassive black hole.

## Etymology
First observed by the Fermi Gamma-ray Space Telescope.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fermi-bubble