Meanings
nounReuleaux triangle (plural Reuleaux triangles)
plural Reuleaux triangles
- geometryA figure consisting of three circular arcs, each centered on the intersection of the other two.
Synonyms: Reuleaux rotor
Synonyms & antonyms
nounA figure consisting of three circular arcs, each centered on the intersection of the other two.
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Origin
Named after Franz Reuleaux, 19th-century German engineer, who used Reuleaux triangles in his machine designs.
Full word history & related roots →Translations
Finnish Reuleaux’n kolmio
- Reuleaux’n kolmiofigure consisting of three circular arcs
French triangle de Reuleaux
- triangle de Reuleauxfigure consisting of three circular arcs
Russian треуго́льник Рёло́
- треуго́льник Рёло́ (treugólʹnik Rjoló)figure consisting of three circular arcs
Cite this entry
APA
Reuleaux triangle. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Reuleaux%20triangle
MLA
“Reuleaux triangle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Reuleaux%20triangle. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Reuleaux triangle,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Reuleaux%20triangle.
Source: Reuleaux triangle on Wiktionary, CC BY-SA 4.0.