Home › Words › P › pericynthionpericynthionpericynthion · noun — the point in an elliptical orbit around the moon that passes closest to the moon.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom peri- + Cynthia (“Artemis, the Moon”) + -ion, from Ancient Greek περι- (peri-) + Κυνθία (Kunthía, “Artemis”). Compare perihelion, periastron.nounThe point in an elliptical orbit around the moon that passes closest to the moon.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.perilune 77% match — The point of an elliptical lunar orbit where the distance between the satellite and the Moon is at its minimum. vs pericynthion →apocynthion 73% match — The point in an orbit around the Moon that is most distant from that body. vs pericynthion →periherm 70% match — In an orbit around the planet Mercury, the point that is closest to Mercury. vs pericynthion →peribothron 70% match — The point in an elliptical orbit around a black hole where the orbiting body is closest to the black hole. vs pericynthion →pericytherion 68% match — Periapsis around Venus. vs pericynthion →aposelenium 66% match — The point of a body's elliptical orbit about the moon's centre of mass where the distance between the body and the centre of mass is at its maximum. vs pericynthion →perihelion 66% match — The point in the elliptical orbit of a comet, planet, etc., where it is nearest to the Sun. vs pericynthion →apolune 66% match — The point of an elliptical lunar orbit where the distance between the satellite and the Moon is at its maximum. vs pericynthion →