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Definition of Perihelion
1. Noun. Periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun.
Definition of Perihelion
1. n. That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to aphelion.
Definition of Perihelion
1. [n -LIA]
Lexicographical Neighbors of Perihelion
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