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Definition of Periastron
1. n. That point, in the real or apparent orbit of one star revolving around another, at which the former is nearest to the latter.
Definition of Periastron
1. Noun. (astronomy) That point of the orbit of a celestial body which is closest to the star around which the body is orbiting. ¹
¹ Source: wiktionary.com
Medical Definition of Periastron
1.
Lexicographical Neighbors of Periastron
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