perihelion
English
Etymology
Alteration of Latin perihelium, from Ancient Greek περί (perí, “near”) + ἥλιος (hḗlios, “sun”). Compare aphelion.
Noun
perihelion (plural perihelia)
- (astronomy) The point in the elliptical orbit of a planet or comet etc. where it is nearest to the Sun
Antonyms
Related terms
Translations
point where the planet or comet is nearest to the Sun
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Esperanto
Noun
perihelion
- accusative singular of perihelio
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