major axis

noun

The longest diameter of an ellipse, running through the center and foci, with its ends being the widest points of the shape.

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Meanings

nounmajor axis (plural major axes)

plural major axes

  1. geometryThe longest diameter of an ellipse, running through the center and foci, with its ends being the widest points of the shape.
  2. geometryThe diameter of a circle.

Translations

Chinese Mandarin 長軸 /长轴
  • 長軸 /长轴 (chángzhóu)longest diameter of an ellipse
Czech hlavní osa
  • hlavní osalongest diameter of an ellipse
Finnish isoakseli, halkaisija
  • isoakselilongest diameter of an ellipse
  • halkaisijadiameter of a circle — see also diameter
French grand axe
  • grand axelongest diameter of an ellipse
German Hauptachse
  • Hauptachselongest diameter of an ellipse
Hungarian főtengely
  • főtengelylongest diameter of an ellipse
Irish mór-ais
  • mór-aislongest diameter of an ellipse
Japanese 長軸
  • 長軸 (chōjiku)longest diameter of an ellipse
Russian гла́вная ось, больша́я ось
  • гла́вная ось (glávnaja osʹ)longest diameter of an ellipse
  • больша́я ось (bolʹšája osʹ)longest diameter of an ellipse
Cite this entry
APA

major axis. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/major%20axis

MLA

“major axis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/major%20axis. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “major axis,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/major%20axis.

Source: major axis on Wiktionary, CC BY-SA 4.0.