Library / English Dictionary

    PERIAPSIS

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    (astronomy) the point in an orbit closest to the body being orbitedplay

    Synonyms:

    periapsis; point of periapsis

    Classified under:

    Nouns denoting spatial position

    Hypernyms ("periapsis" is a kind of...):

    celestial point (a point in the heavens (on the celestial sphere))

    Domain category:

    astronomy; uranology (the branch of physics that studies celestial bodies and the universe as a whole)

    Hyponyms (each of the following is a kind of "periapsis"):

    perigee (periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth)

    perihelion (periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun)

    perijove (periapsis in orbit around Jupiter)

    perilune; periselene (periapsis in orbit around the moon)

    Holonyms ("periapsis" is a part of...):

    celestial orbit; orbit (the (usually elliptical) path described by one celestial body in its revolution about another)

    Antonym:

    apoapsis ((astronomy) the point in an orbit farthest from the body being orbited)

    Credits


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