Synonyms and Antonyms for
periapsis
1. periapsis (n.)
(astronomy) the point in an orbit closest to the body being orbited
Synonyms:
point of periapsis
perijove
orbit
celestial orbit
perigee
perihelion
periselene
perilune
celestial point
Antonyms:
aphelion
apoapsis
point of apoapsis
apogee
apojove
apolune
aposelene
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