ploonet

Meaning

Noun

• 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.

Origin

• From being a planet that originated as a 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).