Table of Contents
Synonyms
Antonyms
Etymology
1. periapsis
noun. (astronomy) the point in an orbit closest to the body being orbited.
Synonyms
- perihelion
- perilune
- celestial point
- perigee
- perijove
- orbit
- celestial orbit
- periselene
Antonyms
- point of apoapsis
- apojove
- apoapsis
- aposelene
- aphelion
- apolune
Etymology
- apsis (English)
- peri- (English)
- περί (Ancient Greek (to 1453))