- 1. n. Alt. of Perihelium Source: opted
- 2. n. periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun Source: wordnet
- 3. That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to Ant: aphelion. Source: webster
- 4. n:100 n. periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun Source: ecdict
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perihelion
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