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Constructed from Ancient Greek: exo- (“outside; extrasolar”) + planet.
Etymology from Wiktionary, CC BY-SA 4.0.
exoplanet
ex·o·plan·etToday it means: A planet which exists outside Earth's solar system. Full definition →
Today it means: A planet which exists outside Earth's solar system. Full definition →
Constructed from Ancient Greek: exo- (“outside; extrasolar”) + planet.
Etymology from Wiktionary, CC BY-SA 4.0.