exoom
Exoom is a neologism that has appeared in speculative writing and discussions but is not officially defined in astronomy. The term is formed from the exo- prefix, indicating relation to exoplanets or planetary systems outside the Solar System, and a moon-like suffix, implying a satellite or moon-analogue. Because there is no standardized definition, the meaning of exoom varies by author and context.
In fiction and conceptual discussions, exoom is sometimes used to describe a hypothetical small satellite associated
In formal science, exoom has little or no standing as a category; researchers typically refer to exomoons,
See also: Exoplanet, Exomoon, Interstellar object, Oumuamua.