Meanings
nounSimson line (plural Simson lines)
plural Simson lines
- geometryGiven a triangle ABC and a point P on its circumcircle, the three closest points to P on lines AB, AC, and BC are collinear. The line through these points is the Simson line of P.
Synonyms: Wallace line
Synonyms & antonyms
nounGiven a triangle ABC and a point P on its circumcircle, the three closest points to P on lines AB, AC, and BC are collinear. The line through these points is the Simson line of P.
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Also see
Origin
Named after Robert Simson, though it had been published prior to his work.
Full word history & related roots →Cite this entry
APA
Simson line. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Simson%20line
MLA
“Simson line.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Simson%20line. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “Simson line,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Simson%20line.
Source: Simson line on Wiktionary, CC BY-SA 4.0.