Definition of "triangle" in Englisch

noun

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. (billiards) A triangular piece of equipment used for gathering the balls into the formation required by the game being played.

5. A love triangle.

   • 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, usually in the plural) A frame formed of three poles stuck in the ground and united at the top, to which people were bound for corporal punishment.

9. Any of various large papilionid butterflies of the genus Graphium.

10. (rail transport) A triangular formation of railway tracks, with a curve on at least one side.