Cassini oval

noun

A plane curve defined as the set (or locus) of points in the plane such that the product of the distances to two fixed points is constant (related to an ellipse, for which the sum of the distances is constant).

Similar
Cassini ellipsecassinoidoval of Cassini
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Meanings

nounCassini oval (plural Cassini ovals)

plural Cassini ovals

  1. geometryA plane curve defined as the set (or locus) of points in the plane such that the product of the distances to two fixed points is constant (related to an ellipse, for which the sum of the distances is constant).

    Synonyms: Cassini ellipse, cassinoid, oval of Cassini

Synonyms & antonyms

nounA plane curve defined as the set (or locus) of points in the plane such that the product of the distances to two fixed points is constant (related to an ellipse, for which the sum of the distances is constant).

Similar
Cassini ellipsecassinoidoval of Cassini
Also see
cassini ellipsecassinoidoval of cassini

Origin

Named after the astronomer Giovanni Domenico Cassini, who studied them in 1680.

Full word history & related roots →

Translations

French cassinoïde
  • cassinoïdeTranslations
Cite this entry
APA

Cassini oval. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Cassini%20oval

MLA

“Cassini oval.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Cassini%20oval. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Cassini oval,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Cassini%20oval.

Source: Cassini oval on Wiktionary, CC BY-SA 4.0.