Gergonne point

noun

A certain triangle center. Given a triangle ∆ABC and its Gergonne triangle (with the touchpoint opposite A denoted by T_A, etc.), the Gergonne point is the intersection of the three lines AT_A, BT_B, and CT_C.

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Meanings

nounGergonne point (plural Gergonne points)

plural Gergonne points

  1. geometryA certain triangle center. Given a triangle ∆ABC and its Gergonne triangle (with the touchpoint opposite A denoted by T_A, etc.), the Gergonne point is the intersection of the three lines AT_A, BT_B, and CT_C.

Origin

Named after Joseph Diaz Gergonne.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

Source: Gergonne point on Wiktionary, CC BY-SA 4.0.