| Pronunciation: | | u'feeleeun
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 WordNet Dictionary |
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| | Definition: | |
[n] apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun |
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APHELION is a 8 letter word that starts with A. |
| | Antonyms: | | perihelion |
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| | See Also: | | apoapsis, point of apoapsis |
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| Webster's 1913 Dictionary |
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| | Definition: | | \A*phel"ion\ (?; 277), n.; pl. {Aphelia}. [Gr. ? + ?
sun.] (Astron.)
That point of a planet's or comet's orbit which is most
distant from the sun, the opposite point being the
perihelion.
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