trigon

¹

[ trahy-gon ]

noun

1. a triangle.
2. an ancient Greek stringed instrument with a triangular shape.
3. Astrology Archaic.
   1. trine.
   2. triplicity.

trigon.

²

abbreviation for

1. trigonometric.
2. trigonometrical.
3. trigonometry.

trigon

/ ˈtraɪɡɒn /

noun

1. (in classical Greece or Rome) a triangular harp or lyre
2. an archaic word for triangle

Word History and Origins

Origin of trigon¹

1555–65; < Latin trigōnum triangle < Greek trígōnon, noun use of neuter of trígōnos three-angled. See tri-, -gon

Word History and Origins

Origin of trigon¹

C17: via Latin from Greek trigōnon triangle. See tri- , -gon

Example Sentences

Thus we speak of a pentagon but not of a tetragon or a trigon, although both words are correct in form.

From Project Gutenberg

Thus, when the three superior planets met in Aries, Leo, or Sagittarius, they formed a fiery trigon; when in Cancer, Scorpio, and Pisces, a watery one.

From Project Gutenberg

In Figure 74 is a trigon, the angles at its centre being 120, and the angle at the circumference being 60, as marked.

From Project Gutenberg

The fourth conjunction in this trigon took place in 1663, in Sagittarius, again opposite to the ascendant of London.

From Project Gutenberg

Of nouns in on, derived from Greek, the greater part always form the plural regularly; as, etymons, gnomons, ichneumons, myrmidons, phlegmons, trigons, tetragons, pentagons, hexagons, heptagons, octagons, enneagons, decagons, hendecagons, dodecagons, polygons.

From Project Gutenberg