Meanings
nounjellyfish galaxy (plural jellyfish galaxies)
plural jellyfish galaxies
- galaxiesa type of galaxy created by ram pressure stripping the interstellar gas from a galaxy by the high temperature higher pressure intracluster medium, forming long tendrils of concentrated gas trailing behind the galaxy, which form nebulae and new stars, giving the appearance of celestial jellyfish
Origin
From the appearance of the galaxy being reminiscent of a jellyfish.
Full word history & related roots →Cite this entry
APA
jellyfish galaxy. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/jellyfish%20galaxy
MLA
“jellyfish galaxy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/jellyfish%20galaxy. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “jellyfish galaxy,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/jellyfish%20galaxy.
Source: jellyfish galaxy on Wiktionary, CC BY-SA 4.0.