- Archaic a triangle
- Astrol. triplicity (sense )
Origin of trigonClassical Latin trigonum ; from Classical Greek trig?non, triangle, lyre ; from trig?nos, triangular: see tri- and amp; -gon
- A triangular lyre or harp of Roman and Greek antiquity.
- See triplicity.
- Archaic A triangle.
Origin of trigonLatin trig&omacron;num, from Greek trig&omacron;non, from neuter of trig&omacron;nos, triangular : tri-, tri- + g&omacron;nia, angle; see –gon.
- (geometry, rare) A triangle.
- An ancient triangular harp of Oriental origin which had four strings and was often used for banquet music. Also called sabbeka, sackbut, sambuca.
- (astrology) A division consisting of three signs.
- (astrology) A trine; an aspect of two planets distant 120 degrees from each other.
- An old ball game played by three people standing in a triangular formation.
Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
From Ancient Greek Ï„ÏÎ¯Î³Ï‰Î½Î¿Î½ (trigÅnon, “triangle"), neuter substantive of Ï„ÏÎ¯Î³Ï‰Î½Î¿Ï‚ (trigÅnos, “three sided"), from Ï„ÏÎµá¿–Ï‚ (treis, “three") + Î³Ï‰Î½Î¯Î± (gÅnia, “bend, angle").