triangle

Etymology

From Old French triangle, from Latin triangulum, noun use of adjective triangulus (“three-cornered, having three angles”), from trēs (“three”) + angulus (“corner, angle”).

Pronunciation

• (UK) IPA^(key): /ˈtɹaɪəŋɡəl/, /ˈtɹaɪˌæŋɡəl/
• (US) enPR: trī'-ăng-gəl, IPA^(key): /ˈtɹaɪˌæŋɡəl/

• Audio (US)

  (file)

• Rhymes: -aɪæŋɡəl
• Hyphenation: tri‧an‧gle

Noun

triangle (plural triangles)

1. (geometry) A polygon with three sides and three angles.
2. (US, Canada) A set square.
3. (music) A percussion instrument made by forming a metal rod into a triangular shape which is open at one angle. It is suspended from a string and hit with a metal bar to make a resonant sound.
4. (cue sports) A triangular piece of equipment used for gathering the balls into the formation required by the game being played.
5. A love triangle.
   • 2009, Neil McDonald, Quadrant, November 2009, No. 461 (Volume LIII, Number 11), Quadrant Magazine Limited, page 104:

     One of the writers' most pleasing inventions was to treat the triangle love story as comedy.

6. (systemics) The structure of systems composed with three interrelated objects.
7. A draughtsman's square in the form of a right-angled triangle.
8. (historical) A frame formed of three poles stuck in the ground and united at the top, to which soldiers were bound when undergoing corporal punishment.

Anagrams

• INTEGRAL, alerting, altering, integral, relating, tanglier, teraglin

Noun

triangle m (plural triangles)

1. (geometry) triangle
2. (music) triangle

Etymology

Borrowed from Latin triangulum. Synchronically analysable as tri- +‎ angle.

Pronunciation

• IPA^(key): /tʁi.jɑ̃ɡl/

• audio

  (file)

Noun

triangle m (plural triangles)

1. (geometry) triangle (polygon)

   triangle équilatéral

   equilateral triangle

   triangle isocèle

   isosceles triangle

2. (music) triangle (percussion instrument)

Further reading

• “triangle” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Anagrams

• intégral