projective plane

noun

A plane in which any pair of distinct points determine a line and any pair of distinct lines intersect at a point.

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Meanings

nounprojective plane (plural projective planes)

plural projective planes

  1. geometryA plane in which any pair of distinct points determine a line and any pair of distinct lines intersect at a point.

    Generally, a projective plane of "order" N has N²#43;N#43;1 points, and the same number of lines.

    2004, David S. Dummit with Richard M. Foote, chapter 6, in Abstract Algebra, →ISBN, page 210
Cite this entry
APA

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

MLA

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

Chicago

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

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