# ploonet

> English word · Noun

## Definitions
1. A theoretical planetary body that formed as a moon orbiting a planet, but which has become tidally detached, so that it enters orbit about its star, separated from its parent planet.

## Etymology
Blend of planet + moon.
Coined in 2019 by the research team of Mario Sucerquia, Jaime A Alvarado-Montes, Jorge I Zuluaga, Nicolás Cuello, Cristian Giuppone (see quotations below).

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