WordReference Random House Unabridged Dictionary of American English © 2026
tri•gon  (trī′gon),USA pronunciation n. 
  1. a triangle.
  2. an ancient Greek stringed instrument with a triangular shape.
  3. Astrology
    • trine.
    • triplicity.
  • Greek trígōnon, noun, nominal use of neuter of trígōnos three-angled. See tri-, -gon
  • Latin trigōnum triangle
  • 1555–65

trigon., 
    1. trigonometric.
    2. trigonometrical.
    3. trigonometry.

'trigon' also found in these entries (note: many are not synonyms or translations):
tri- - trigonal - trigone - trigonometry - trigonum - trine

Forum discussions with the word(s) "trigon" in the title:


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