Word.ws English Dictionary

AGN

AGN is the initialism of active galactic nucleus.

Meaning of active galactic nucleus

Noun

active galactic nucleus (plural active galactic nuclei)

  1. A compact region at the center of a galaxy that has a much higher than normal luminosity over at least some portion of the (measurable) electromagnetic spectrum.
    Synonyms:
    AGN

Forms of AGN

pluralAGNs
pluralAGNe
pluralAGNi

Questions about AGN

What is AGN the initialism of?
AGN is the initialism of active galactic nucleus.

Words near AGN in the dictionary

  1. agminated
  2. AGMP
  3. AGMPs
  4. AGMs
  5. agmt.
  6. AGN
  7. agnail
  8. agnails
  9. agname
  10. agnamed
  11. agnames

Source and license

Adapted from Wiktionary: AGN (page history and authors); active galactic nucleus (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “AGN.” Word.ws, https://word.ws/agn. Based on Wiktionary, CC BY-SA 4.0.