| Pronunciation: | | `peru'heeleeun
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 WordNet Dictionary |
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| | Definition: | |
[n] periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun |
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PERIHELION is a 10 letter word that starts with P. |
| | Antonyms: | | aphelion |
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| | See Also: | | periapsis, point of periapsis |
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| Webster's 1913 Dictionary |
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| | Definition: | | \Per`i*hel"ion\, Perihelium \Per`i*he"li*um\, n.; pl.
{Perihelia}. [NL., fr. Gr. ? about, near + ? the sun.]
(Astron.)
That point of the orbit of a planet or comet which is nearest
to the sun; -- opposed to {aphelion}.
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