trigon Meaning, Definition & Usage

  1. noun a three-sided polygon
    trilateral; triangle.
  2. noun (astrology) one of four groups of the zodiac where each group consists of three signs separated from each other by 120 degrees
    triplicity.
  3. noun a triangular lyre of ancient Greece and Rome

WordNet

Tri"gon noun
Etymology
L. trigonum, Gr. (see Tri-) + a corner, angle: cf. F. trigone.
Definitions
  1. A figure having three angles; a triangle.
  2. (Astrol.) (a) A division consisting of three signs. (b) Trine, an aspect of two planets distant 120 degrees from each other. Hutton.
  3. (Gr. & Rom. Antiq.) (a) A kind of triangular lyre or harp. (b) A kind of game at ball played by three persons standing at the angular points of a triangle.

Webster 1913