trigon

tri·gon  (trgn)

n.

1. A triangular lyre or harp of Roman and Greek antiquity.

2. See triplicity.

3. Archaic A triangle.

---

[Latin trignum, from Greek trignon, from neuter of trignos, triangular : tri-, tri- + gni, angle; see -gon.]

---

trigon [ˈtraɪgɒn]

n

1. (Historical Terms) (in classical Greece or Rome) a triangular harp or lyre

2. (Mathematics) an archaic word for triangle

[via Latin from Greek trigōnon triangle. See tri-, -gon]

Thesaurus

Noun	1.	trigon - a three-sided polygon                 triangle, trilateral polygon, polygonal shape - a closed plane figure bounded by straight sides acute triangle, acute-angled triangle - a triangle whose interior angles are all acute equiangular triangle, equilateral triangle - a three-sided regular polygon isosceles triangle - a triangle with two equal sides oblique triangle - a triangle that contains no right angle obtuse triangle, obtuse-angled triangle - a triangle that contains an obtuse interior angle right triangle, right-angled triangle - a triangle with one right angle scalene triangle - a triangle with no two sides of equal length cuneus, wedge, wedge shape - any shape that is triangular in cross section
	2.	trigon - (astrology) one of four groups of the zodiac where each group consists of three signs separated from each other by 120 degrees triplicity astrology, star divination - a pseudoscience claiming divination by the positions of the planets and sun and moon triad, triple, triplet, trio - a set of three similar things considered as a unit
	3.	trigon - a triangular lyre of ancient Greece and Rome lyre - a harp used by ancient Greeks for accompaniment