# trans-Neptunian

> English word · Adjective

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

## Etymology
From trans- + Neptunian.

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