periapsides

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A form of periapsis — The point of a body's (elliptical) orbit in a 2-body gravitational system such that the distance between the two bodies (measured from their respective centres of mass) is at its minimum.

Similar
periapsesperiapsises
OriginEnglish apsides ← Ancient Greek περῐ́ (perĭ́) ← Proto-Indo-European *per- →
Scrabble 16
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Meanings

noun
  1. pluralplural of periapsis

    Synonyms: periapses, periapsises

Synonyms & antonyms

Also see
periapses

Origin

  1. Proto-Indo-European*per-
  2. Ancient Greekπερῐ́ (perĭ́)
  3. Englishperi-
  4. Englishapsides
  5. Englishperiapsides

From peri- + apsides.

Full word history & related roots →
Cite this entry
APA

periapsides. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/periapsides

MLA

“periapsides.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/periapsides. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “periapsides,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/periapsides.

Source: periapsides on Wiktionary, CC BY-SA 4.0.