Word Type

Noun

The word "periapsis" can be used as a noun.

Word Relationships

Opposites (Antonyms)

apoapsis apoapsis

Derived Terms

argument of periapsis longitude of periapsis

Derived From

apsis

Context

astronomy

Broader Terms (Hypernyms)

apsis celestial point

Type Of (IsA)

celestial point

Part Of

orbit

Related Terms

periareion periastron peribothron pericenter pericentre pericynthion perigalacticon perigee perihelion perihermion perijove perikron perikrone perilune perimelasma perinigricon periposeidon perisaturnium periselene

Related Terms

body centre distance elliptical mass minimum orbit periareion periastron peribothra pericynthion pericytherean pericytherion perigalacticon perigee perihadion perihelion perihermion perijove perikrition perikrone perilune perinigricon periposeidion perisaturnium periselene periuranion perizene point system

Synonym Network

pericenter

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.