A three-sided polygon

• Three-sided figure
• Ancient three-sided harp
• Class often taken before calculus: Abbr
• Ancient Greek instrument

Wikipedia Word definitions in Wikipedia
Trigon may refer to: Trigon (comics) , a comic book character Trigon, a code name of Aleksandr Dmitrievich Ogorodnik , a Soviet diplomat who spied for the CIA Triangle

Wiktionary Word definitions in Wiktionary
n. 1 (context geometry rare English) A triangle. 2 An ancient triangular harp of Oriental origin which had four strings and was often used for banquet music. Also called sabbeka, sackbut, sambuca. 3 (context astrology English) A division consisting of three ...

WordNet Word definitions in WordNet
n. a three-sided polygon [syn: triangle , trilateral ] (astrology) one of four groups of the zodiac where each group consists of three signs separated from each other by 120 degrees [syn: triplicity ] a triangular lyre of ancient Greece and Rome

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Trigon \Tri"gon\, n. [L. trigonum, Gr. ?; ? (see Tri- ) + ? a corner, angle: cf. F. trigone.] A figure having three angles; a triangle. (Astrol.) A division consisting of three signs. Trine, an aspect of two planets distant 120 degrees from each other. ...