Phrase guide

Reuleaux triangle

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A figure consisting of three circular arcs, each centered on the intersection of the other two.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Reuleaux rotor

Antonyms: none provided

History

Etymology

Named after Franz Reuleaux, 19th-century German engineer, who used Reuleaux triangles in his machine designs.

Across languages

Translations

3 source translations are retained for this English entry.

  • Finnish: Reuleaux’n kolmio — figure consisting of three circular arcs
  • French: triangle de Reuleaux — figure consisting of three circular arcs
  • Russian: треуго́льник Рёло́ (treugólʹnik Rjoló) — figure consisting of three circular arcs