immortal jellyfish

noun

Any member of the species Turritopsis dohrnii of jellyfish which can revert back into a larval or polyp state, being biologically immortal.

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Meanings

nounimmortal jellyfish (plural immortal jellyfishes)

plural immortal jellyfishes

  1. Any member of the species Turritopsis dohrnii of jellyfish which can revert back into a larval or polyp state, being biologically immortal.

Origin

So called because it can revert to a larval or polyp state.

Full word history & related roots →

Translations

Dutch onsterfelijke kwal
  • onsterfelijke kwalTurritopsis dohrnii
Cite this entry
APA

immortal jellyfish. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/immortal%20jellyfish

MLA

“immortal jellyfish.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/immortal%20jellyfish. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “immortal jellyfish,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/immortal%20jellyfish.

Source: immortal jellyfish on Wiktionary, CC BY-SA 4.0.