trigon
(noun)
noun
1. a three-sided polygon
Similar word(s): triangle, trilateral
Definition categories: shape, polygon
2. (astrology) one of four groups of the zodiac where each group consists of three signs separated from each other by 120 degrees
Similar word(s): triplicity
Definition categories: group, triad, trio, triple, triplet
3. a triangular lyre of ancient Greece and Rome
Definition categories: man–made, lyre