periapsis 1
noundomain: location
Princeton WordNet [ver.3.1]
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EnglishDefinition
(astronomy) the point in an orbit closest to the body being orbited
Hypernym
a point in the heavens (on the celestial sphere)
Part_meronym
orbit 1
noun
the (usually elliptical) path described by one celestial body in its revolution about another
Domain_of_synset_-_TOPIC
astronomy 1
noun
the branch of physics that studies celestial bodies and the universe as a whole
EnglishAntonym
apoapsis 1
noun
(astronomy) the point in an orbit farthest from the body being orbited
Hyponym
perigee 1
noun
periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth
perihelion 1
noun
periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun
perijove 1
noun
periapsis in orbit around Jupiter
periselene 1
noun
periapsis in orbit around the moon
Part_holonym
orbit 1
noun
the (usually elliptical) path described by one celestial body in its revolution about another
Member_of_this_domain_-_TOPIC
astronomy 1
noun
the branch of physics that studies celestial bodies and the universe as a whole
