Added 10 October 2026 extraspherical adjective adjective ! Definition from Wiktionary (CC BY-SA). More about extraspherical at Wordnik → Where our words come from → Outside of a sphere. Origin From extra- + spherical. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: spherichypersphericalextrasolarexosolarextraplanarextrameridionalextragalacticanagalacticextraplanetaryextrameridiansubellipsoidalexoterrene Back to today's word