perihelium

English

Etymology
PIE word
*sóh₂wl̥

Borrowed from Late Latin perihelium, from Ancient Greek περί- (perí-) (a variant of περι- (peri-, prefix meaning ‘around; surrounding’), ultimately from Proto-Indo-European *per- (“before, in front; first”)) + ἥλιος (hḗlios, “sun”) (ultimately from Proto-Indo-European *sóh₂wl̥ (“sun”) or a pre-Hellenic language), which was modelled after perigeum (“point in an orbit about the Earth that is closest to the Earth, perigee”).[1]

Pronunciation

Noun

perihelium (plural perihelia)

  1. (astronomy, obsolete) Synonym of perihelion [17th–18th c.]

See also

References
  1. Compare “perihelion, n.”, in OED Online Paid subscription required⁠, Oxford, Oxfordshire: Oxford University Press, December 2005; “perihelion, n.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

Dutch
Het aphelium en perihelium van een planeet.
The aphelion and perihelion of a planet.

Etymology

From Ancient Greek περί (perí, “about, around”) + New Latin helium, from Ancient Greek ἥλιος (hḗlios, “sun”).

Pronunciation
  • Audio(file)
  • Hyphenation: pe‧ri‧he‧li‧um

Noun

perihelium n (plural perihelia)

  1. (astronomy) perihelion
    Antonym: aphelium

Norwegian Bokmål

Alternative forms

Noun

perihelium n (definite singular periheliet, indefinite plural perihelier, definite plural perihelia or periheliene)

  1. (astronomy) perihelion
    Antonym: aphelium

References

Norwegian Nynorsk

Alternative forms

Noun

perihelium n (definite singular periheliet, indefinite plural perihelium, definite plural perihelia)

  1. (astronomy) perihelion
    Antonym: aphelium

References
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