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