trans-Neptunian

adjective

Lying beyond the orbit of the planet Neptune (especially with regard to planetary bodies).

“Planet X is a legendary trans-Neptunian world.”

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

adjectivetrans-Neptunian (not comparable)

alternative transneptunian

  1. not comparableLying beyond the orbit of the planet Neptune (especially with regard to planetary bodies).

    Planet X is a legendary trans-Neptunian world.

Origin

From trans- + Neptunian.

Full word history & related roots →

Translations

Catalan transneptunià
  • transneptuniàTranslations
French transneptunien
  • transneptunienTranslations
German transneptunisch
  • transneptunischTranslations
Russian транснепту́новый
  • транснепту́новый (transneptúnovyj)Translations
Swedish transneptunsk
  • transneptunskTranslations
Cite this entry
APA

trans-Neptunian. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/trans-Neptunian

MLA

“trans-Neptunian.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trans-Neptunian. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “trans-Neptunian,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/trans-Neptunian.

Source: trans-Neptunian on Wiktionary, CC BY-SA 4.0.