plane of symmetry

noun

A plane about which a geometric figure is symmetric (by reflection)

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Meanings

nounplane of symmetry (plural planes of symmetry)

plural planes of symmetry

  1. geometryA plane about which a geometric figure is symmetric (by reflection)
Cite this entry
APA

plane of symmetry. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/plane%20of%20symmetry

MLA

“plane of symmetry.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/plane%20of%20symmetry. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “plane of symmetry,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/plane%20of%20symmetry.

Source: plane of symmetry on Wiktionary, CC BY-SA 4.0.