[ trahy-gon ]

  1. a triangle.

  2. an ancient Greek stringed instrument with a triangular shape.

  1. Astrology Archaic.

Origin of trigon

1555–65; <Latin trigōnum triangle <Greek trígōnon, noun use of neuter of trígōnos three-angled. See tri-, -gon

Words Nearby trigon

Other definitions for trigon. (2 of 2)


  1. trigonometric.

  2. trigonometrical.

  1. trigonometry. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use trigon in a sentence

  • According to this writer, great conjunctions of Jupiter and Saturn occur "in the fiery trigon," about once in 800 years.

  • Al trigon, insecto sedente, cum corpore triangulum subhorizontale efficientes, superiores margine externo recto.

  • Thus we speak of a pentagon but not of a tetragon or a trigon, although both words are correct in form.

    The Teaching of Geometry | David Eugene Smith

British Dictionary definitions for trigon


/ (ˈtraɪɡɒn) /

  1. (in classical Greece or Rome) a triangular harp or lyre

  2. an archaic word for triangle

Origin of trigon

C17: via Latin from Greek trigōnon triangle. See tri-, -gon

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012