Definition of "exomoon" []

• A moon that orbits an extrasolar planet. (noun)

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• "New research shows that, if we find such an "exomoon" in the habitable zone of a nearby star, the James Webb Space Telescope will be able to study its atmosphere and detect key gases like carbon dioxide, oxygen, and water."
• "People have been searching for exomoons for a whole ten years now, and not a single exomoon has been detected."
• "Variation in this time is not a smoking gun for an exomoon, because it has a number of possible causes, including another planet in the system."